diff --git a/internal/frontend/server.go b/internal/frontend/server.go
index 269c34a..5f8cabd 100644
--- a/internal/frontend/server.go
+++ b/internal/frontend/server.go
@@ -600,7 +600,7 @@
 	}
 
 	for _, set := range htmlSets {
-		t, err := template.New("frontend.tmpl").Funcs(templateFuncs).ParseFilesFromTrustedSources(join(base, tsc("frontend/frontend.tmpl")))
+		t, err := template.New("frontend.tmpl").Funcs(templateFuncs).ParseGlobFromTrustedSource(join(base, tsc("frontend/*.tmpl")))
 		if err != nil {
 			return nil, fmt.Errorf("ParseFilesFromTrustedSources: %v", err)
 		}
diff --git a/static/frontend/unit/main/_modals.css b/static/frontend/_modals.css
similarity index 100%
rename from static/frontend/unit/main/_modals.css
rename to static/frontend/_modals.css
diff --git a/static/frontend/unit/main/_modals.tmpl b/static/frontend/_modals.tmpl
similarity index 98%
rename from static/frontend/unit/main/_modals.tmpl
rename to static/frontend/_modals.tmpl
index 77f2167..d698dd7 100644
--- a/static/frontend/unit/main/_modals.tmpl
+++ b/static/frontend/_modals.tmpl
@@ -4,7 +4,7 @@
   license that can be found in the LICENSE file.
 -->
 
-{{define "unit-modals"}}
+{{define "modals"}}
   <dialog id="jump-to-modal" class="JumpDialog go-Modal go-Modal--md js-modal">
     <form method="dialog" data-gmtc="jump to form" aria-label="Jump to Identifier">
       <div class="Dialog-title go-Modal-header">
diff --git a/static/frontend/frontend.css b/static/frontend/frontend.css
index 7a7d5f5..4732bb0 100644
--- a/static/frontend/frontend.css
+++ b/static/frontend/frontend.css
@@ -5,3 +5,4 @@
  */
 
 @import url('../shared/shared.css');
+@import url('_modals.css');
diff --git a/static/frontend/frontend.js b/static/frontend/frontend.js
index da8ea1c..b7a2e01 100644
--- a/static/frontend/frontend.js
+++ b/static/frontend/frontend.js
@@ -1,4 +1,4 @@
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o=document.styleSheets[t],i=null;try{i=o.cssRules}catch(j){}if(!!i)for(var n=0;n<i.length;++n){var r=i[n],s=null;try{s=document.querySelectorAll(r.selectorText)}catch(j){}if(!(!s||!z(s,e))){var l=r.style.getPropertyValue("top"),E=r.style.getPropertyValue("bottom");if(l&&l!=="auto"||E&&E!=="auto")return!0}}}return!1};a.needsCentering=function(e){var t=window.getComputedStyle(e);return t.position!=="absolute"||e.style.top!=="auto"&&e.style.top!==""||e.style.bottom!=="auto"&&e.style.bottom!==""?!1:!a.isInlinePositionSetByStylesheet(e)};a.forceRegisterDialog=function(e){if((window.HTMLDialogElement||e.showModal)&&console.warn("This browser already supports <dialog>, the polyfill may not work correctly",e),e.localName!=="dialog")throw new Error("Failed to register dialog: The element is not a dialog.");new S(e)};a.registerDialog=function(e){e.showModal||a.forceRegisterDialog(e)};a.DialogManager=function(){this.pendingDialogStack=[];var e=this.checkDOM_.bind(this);this.overlay=document.createElement("div"),this.overlay.className="_dialog_overlay",this.overlay.addEventListener("click",function(t){this.forwardTab_=void 0,t.stopPropagation(),e([])}.bind(this)),this.handleKey_=this.handleKey_.bind(this),this.handleFocus_=this.handleFocus_.bind(this),this.zIndexLow_=1e5,this.zIndexHigh_=1e5+150,this.forwardTab_=void 0,"MutationObserver"in window&&(this.mo_=new MutationObserver(function(t){var o=[];t.forEach(function(i){for(var n=0,r;r=i.removedNodes[n];++n){if(r instanceof Element)r.localName==="dialog"&&o.push(r);else continue;o=o.concat(r.querySelectorAll("dialog"))}}),o.length&&e(o)}))};a.DialogManager.prototype.blockDocument=function(){document.documentElement.addEventListener("focus",this.handleFocus_,!0),document.addEventListener("keydown",this.handleKey_),this.mo_&&this.mo_.observe(document,{childList:!0,subtree:!0})};a.DialogManager.prototype.unblockDocument=function(){document.documentElement.removeEventListener("focus",this.handleFocus_,!0),document.removeEventListener("keydown",this.handleKey_),this.mo_&&this.mo_.disconnect()};a.DialogManager.prototype.updateStacking=function(){for(var e=this.zIndexHigh_,t=0,o;o=this.pendingDialogStack[t];++t)o.updateZIndex(--e,--e),t===0&&(this.overlay.style.zIndex=--e);var i=this.pendingDialogStack[0];if(i){var n=i.dialog.parentNode||document.body;n.appendChild(this.overlay)}else this.overlay.parentNode&&this.overlay.parentNode.removeChild(this.overlay)};a.DialogManager.prototype.containedByTopDialog_=function(e){for(;e=u(e);){for(var t=0,o;o=this.pendingDialogStack[t];++t)if(o.dialog===e)return t===0;e=e.parentElement}return!1};a.DialogManager.prototype.handleFocus_=function(e){if(!this.containedByTopDialog_(e.target)&&document.activeElement!==document.documentElement&&(e.preventDefault(),e.stopPropagation(),T(e.target),this.forwardTab_!==void 0)){var t=this.pendingDialogStack[0],o=t.dialog,i=o.compareDocumentPosition(e.target);return i&Node.DOCUMENT_POSITION_PRECEDING&&(this.forwardTab_?t.focus_():e.target!==document.documentElement&&document.documentElement.focus()),!1}};a.DialogManager.prototype.handleKey_=function(e){if(this.forwardTab_=void 0,e.keyCode===27){e.preventDefault(),e.stopPropagation();var t=new c("cancel",{bubbles:!1,cancelable:!0}),o=this.pendingDialogStack[0];o&&o.dialog.dispatchEvent(t)&&o.dialog.close()}else e.keyCode===9&&(this.forwardTab_=!e.shiftKey)};a.DialogManager.prototype.checkDOM_=function(e){var t=this.pendingDialogStack.slice();t.forEach(function(o){e.indexOf(o.dialog)!==-1?o.downgradeModal():o.maybeHideModal()})};a.DialogManager.prototype.pushDialog=function(e){var t=(this.zIndexHigh_-this.zIndexLow_)/2-1;return this.pendingDialogStack.length>=t?!1:(this.pendingDialogStack.unshift(e)===1&&this.blockDocument(),this.updateStacking(),!0)};a.DialogManager.prototype.removeDialog=function(e){var t=this.pendingDialogStack.indexOf(e);t!==-1&&(this.pendingDialogStack.splice(t,1),this.pendingDialogStack.length===0&&this.unblockDocument(),this.updateStacking())};a.dm=new a.DialogManager;a.formSubmitter=null;a.useValue=null;window.HTMLDialogElement===void 0&&(y=document.createElement("form"),y.setAttribute("method","dialog"),y.method!=="dialog"&&(d=Object.getOwnPropertyDescriptor(HTMLFormElement.prototype,"method"),d&&(x=d.get,d.get=function(){return h(this)?"dialog":x.call(this)},k=d.set,d.set=function(e){return typeof 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0:e.querySelector("input"),i=document.querySelector(".js-headerLogo"),n=document.querySelector(".js-headerMenuButton");t==null||t.addEventListener("click",()=>{e==null||e.classList.add("go-SearchForm--expanded"),i==null||i.classList.add("go-Header-logo--hidden"),n==null||n.classList.add("go-Header-navOpen--hidden"),o==null||o.focus()}),document==null||document.addEventListener("click",r=>{(e==null?void 0:e.contains(r.target))||(e==null||e.classList.remove("go-SearchForm--expanded"),i==null||i.classList.remove("go-Header-logo--hidden"),n==null||n.classList.remove("go-Header-navOpen--hidden"))})}var p=class{constructor(t){this.el=t;this.setActive=t=>{this.activeIndex=(t+this.slides.length)%this.slides.length,this.el.setAttribute("data-slide-index",String(this.activeIndex));for(let o of this.dots)o.classList.remove("go-Carousel-dot--active");this.dots[this.activeIndex].classList.add("go-Carousel-dot--active");for(let o of 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This may cause it to be unusable. For more information, see this link: https://github.com/GoogleChrome/dialog-polyfill/#stacking-context"),this.setOpen(!0),this.openAsModal_=!0,a.needsCentering(this.dialog_)?(a.reposition(this.dialog_),this.replacedStyleTop_=!0):this.replacedStyleTop_=!1,this.dialog_.parentNode.insertBefore(this.backdrop_,this.dialog_.nextSibling),this.focus_()},close:function(e){if(!this.dialog_.hasAttribute("open"))throw new Error("Failed to execute 'close' on dialog: The element does not have an 'open' attribute, and therefore cannot be closed.");this.setOpen(!1),e!==void 0&&(this.dialog_.returnValue=e);var t=new v("close",{bubbles:!1,cancelable:!1});this.dialog_.dispatchEvent(t)}};a={};a.reposition=function(e){var t=document.body.scrollTop||document.documentElement.scrollTop,o=t+(window.innerHeight-e.offsetHeight)/2;e.style.top=Math.max(t,o)+"px"};a.isInlinePositionSetByStylesheet=function(e){for(var t=0;t<document.styleSheets.length;++t){var o=document.styleSheets[t],n=null;try{n=o.cssRules}catch(Y){}if(!!n)for(var i=0;i<n.length;++i){var s=n[i],r=null;try{r=document.querySelectorAll(s.selectorText)}catch(Y){}if(!(!r||!te(r,e))){var u=s.style.getPropertyValue("top"),f=s.style.getPropertyValue("bottom");if(u&&u!=="auto"||f&&f!=="auto")return!0}}}return!1};a.needsCentering=function(e){var t=window.getComputedStyle(e);return t.position!=="absolute"||e.style.top!=="auto"&&e.style.top!==""||e.style.bottom!=="auto"&&e.style.bottom!==""?!1:!a.isInlinePositionSetByStylesheet(e)};a.forceRegisterDialog=function(e){if((window.HTMLDialogElement||e.showModal)&&console.warn("This browser already supports <dialog>, the polyfill may not work correctly",e),e.localName!=="dialog")throw new Error("Failed to register dialog: The element is not a dialog.");new O(e)};a.registerDialog=function(e){e.showModal||a.forceRegisterDialog(e)};a.DialogManager=function(){this.pendingDialogStack=[];var e=this.checkDOM_.bind(this);this.overlay=document.createElement("div"),this.overlay.className="_dialog_overlay",this.overlay.addEventListener("click",function(t){this.forwardTab_=void 0,t.stopPropagation(),e([])}.bind(this)),this.handleKey_=this.handleKey_.bind(this),this.handleFocus_=this.handleFocus_.bind(this),this.zIndexLow_=1e5,this.zIndexHigh_=1e5+150,this.forwardTab_=void 0,"MutationObserver"in window&&(this.mo_=new MutationObserver(function(t){var o=[];t.forEach(function(n){for(var i=0,s;s=n.removedNodes[i];++i){if(s instanceof Element)s.localName==="dialog"&&o.push(s);else continue;o=o.concat(s.querySelectorAll("dialog"))}}),o.length&&e(o)}))};a.DialogManager.prototype.blockDocument=function(){document.documentElement.addEventListener("focus",this.handleFocus_,!0),document.addEventListener("keydown",this.handleKey_),this.mo_&&this.mo_.observe(document,{childList:!0,subtree:!0})};a.DialogManager.prototype.unblockDocument=function(){document.documentElement.removeEventListener("focus",this.handleFocus_,!0),document.removeEventListener("keydown",this.handleKey_),this.mo_&&this.mo_.disconnect()};a.DialogManager.prototype.updateStacking=function(){for(var e=this.zIndexHigh_,t=0,o;o=this.pendingDialogStack[t];++t)o.updateZIndex(--e,--e),t===0&&(this.overlay.style.zIndex=--e);var n=this.pendingDialogStack[0];if(n){var i=n.dialog.parentNode||document.body;i.appendChild(this.overlay)}else this.overlay.parentNode&&this.overlay.parentNode.removeChild(this.overlay)};a.DialogManager.prototype.containedByTopDialog_=function(e){for(;e=y(e);){for(var t=0,o;o=this.pendingDialogStack[t];++t)if(o.dialog===e)return t===0;e=e.parentElement}return!1};a.DialogManager.prototype.handleFocus_=function(e){if(!this.containedByTopDialog_(e.target)&&document.activeElement!==document.documentElement&&(e.preventDefault(),e.stopPropagation(),I(e.target),this.forwardTab_!==void 0)){var t=this.pendingDialogStack[0],o=t.dialog,n=o.compareDocumentPosition(e.target);return n&Node.DOCUMENT_POSITION_PRECEDING&&(this.forwardTab_?t.focus_():e.target!==document.documentElement&&document.documentElement.focus()),!1}};a.DialogManager.prototype.handleKey_=function(e){if(this.forwardTab_=void 0,e.keyCode===27){e.preventDefault(),e.stopPropagation();var t=new v("cancel",{bubbles:!1,cancelable:!0}),o=this.pendingDialogStack[0];o&&o.dialog.dispatchEvent(t)&&o.dialog.close()}else e.keyCode===9&&(this.forwardTab_=!e.shiftKey)};a.DialogManager.prototype.checkDOM_=function(e){var t=this.pendingDialogStack.slice();t.forEach(function(o){e.indexOf(o.dialog)!==-1?o.downgradeModal():o.maybeHideModal()})};a.DialogManager.prototype.pushDialog=function(e){var t=(this.zIndexHigh_-this.zIndexLow_)/2-1;return this.pendingDialogStack.length>=t?!1:(this.pendingDialogStack.unshift(e)===1&&this.blockDocument(),this.updateStacking(),!0)};a.DialogManager.prototype.removeDialog=function(e){var t=this.pendingDialogStack.indexOf(e);t!==-1&&(this.pendingDialogStack.splice(t,1),this.pendingDialogStack.length===0&&this.unblockDocument(),this.updateStacking())};a.dm=new a.DialogManager;a.formSubmitter=null;a.useValue=null;window.HTMLDialogElement===void 0&&(S=document.createElement("form"),S.setAttribute("method","dialog"),S.method!=="dialog"&&(m=Object.getOwnPropertyDescriptor(HTMLFormElement.prototype,"method"),m&&(q=m.get,m.get=function(){return w(this)?"dialog":q.call(this)},N=m.set,m.set=function(e){return typeof e=="string"&&e.toLowerCase()==="dialog"?this.setAttribute("method",e):N.call(this,e)},Object.defineProperty(HTMLFormElement.prototype,"method",m))),document.addEventListener("click",function(e){if(a.formSubmitter=null,a.useValue=null,!e.defaultPrevented){var t=e.target;if(!(!t||!w(t.form))){var o=t.type==="submit"&&["button","input"].indexOf(t.localName)>-1;if(!o){if(!(t.localName==="input"&&t.type==="image"))return;a.useValue=e.offsetX+","+e.offsetY}var n=y(t);!n||(a.formSubmitter=t)}}},!1),P=HTMLFormElement.prototype.submit,R=function(){if(!w(this))return P.call(this);var e=y(this);e&&e.close()},HTMLFormElement.prototype.submit=R,document.addEventListener("submit",function(e){if(!e.defaultPrevented){var t=e.target;if(!!w(t)){e.preventDefault();var o=y(t);if(!!o){var n=a.formSubmitter;n&&n.form===t?o.close(a.useValue||n.value):o.close(),a.formSubmitter=null}}}},!1));oe=a});function H(){let e=document.querySelector(".js-header"),t=document.querySelectorAll(".js-headerMenuButton");t.forEach(n=>{n.addEventListener("click",i=>{i.preventDefault(),e==null||e.classList.toggle("is-active"),n.setAttribute("aria-expanded",String(e==null?void 0:e.classList.contains("is-active")))})});let o=document.querySelector(".js-scrim");o==null||o.addEventListener("click",n=>{n.preventDefault(),e==null||e.classList.remove("is-active"),t.forEach(i=>{i.setAttribute("aria-expanded",String(e==null?void 0:e.classList.contains("is-active")))})})}function D(){let e=document.querySelector(".js-searchForm"),t=document.querySelector(".js-expandSearch"),o=e==null?void 0:e.querySelector("input"),n=document.querySelector(".js-headerLogo"),i=document.querySelector(".js-headerMenuButton");t==null||t.addEventListener("click",()=>{e==null||e.classList.add("go-SearchForm--expanded"),n==null||n.classList.add("go-Header-logo--hidden"),i==null||i.classList.add("go-Header-navOpen--hidden"),o==null||o.focus()}),document==null||document.addEventListener("click",s=>{(e==null?void 0:e.contains(s.target))||(e==null||e.classList.remove("go-SearchForm--expanded"),n==null||n.classList.remove("go-Header-logo--hidden"),i==null||i.classList.remove("go-Header-navOpen--hidden"))})}var M=class{constructor(t){this.el=t;this.setActive=t=>{this.activeIndex=(t+this.slides.length)%this.slides.length,this.el.setAttribute("data-slide-index",String(this.activeIndex));for(let o of this.dots)o.classList.remove("go-Carousel-dot--active");this.dots[this.activeIndex].classList.add("go-Carousel-dot--active");for(let o of this.slides)o.setAttribute("aria-hidden","true");this.slides[this.activeIndex].removeAttribute("aria-hidden"),this.liveRegion.textContent="Slide "+(this.activeIndex+1)+" of "+this.slides.length};var o;this.slides=Array.from(t.querySelectorAll(".go-Carousel-slide")),this.dots=[],this.liveRegion=document.createElement("div"),this.activeIndex=Number((o=t.getAttribute("data-slide-index"))!=null?o:0),this.initSlides(),this.initArrows(),this.initDots(),this.initLiveRegion()}initSlides(){for(let[t,o]of this.slides.entries())t!==this.activeIndex&&o.setAttribute("aria-hidden","true")}initArrows(){var o,n;let t=document.createElement("ul");t.classList.add("go-Carousel-arrows"),t.innerHTML=`
       <li>
         <button class="go-Carousel-prevSlide" aria-label="Go to previous slide">
           <img class="go-Icon" height="24" width="24" src="/static/shared/icon/arrow_left_gm_grey_24dp.svg" alt="">
@@ -9,7 +9,7 @@
           <img class="go-Icon" height="24" width="24" src="/static/shared/icon/arrow_right_gm_grey_24dp.svg" alt="">
         </button>
       </li>
-    `,(o=t.querySelector(".go-Carousel-prevSlide"))==null||o.addEventListener("click",()=>this.setActive(this.activeIndex-1)),(i=t.querySelector(".go-Carousel-nextSlide"))==null||i.addEventListener("click",()=>this.setActive(this.activeIndex+1)),this.el.append(t)}initDots(){let t=document.createElement("ul");t.classList.add("go-Carousel-dots");for(let o=0;o<this.slides.length;o++){let i=document.createElement("li"),n=document.createElement("button");n.classList.add("go-Carousel-dot"),o===this.activeIndex&&n.classList.add("go-Carousel-dot--active"),n.innerHTML=`<span class="go-Carousel-obscured">Slide ${o+1}</span>`,n.addEventListener("click",()=>this.setActive(o)),i.append(n),t.append(i),this.dots.push(n)}this.el.append(t)}initLiveRegion(){this.liveRegion.setAttribute("aria-live","polite"),this.liveRegion.setAttribute("aria-atomic","true"),this.liveRegion.setAttribute("class","go-Carousel-obscured"),this.liveRegion.textContent=`Slide ${this.activeIndex+1} of ${this.slides.length}`,this.el.appendChild(this.liveRegion)}};var m=class{constructor(t){this.el=t;var o,i,n,r,s;this.data=(o=t.dataset.toCopy)!=null?o:t.innerText,!this.data&&((i=t.parentElement)==null?void 0:i.classList.contains("go-InputGroup"))&&(this.data=(s=this.data||((r=(n=t.parentElement)==null?void 0:n.querySelector("input"))==null?void 0:r.value))!=null?s:""),t.addEventListener("click",l=>this.handleCopyClick(l))}handleCopyClick(t){t.preventDefault();let o=1e3;if(!navigator.clipboard){this.showTooltipText("Unable to copy",o);return}navigator.clipboard.writeText(this.data).then(()=>{this.showTooltipText("Copied!",o)}).catch(()=>{this.showTooltipText("Unable to copy",o)})}showTooltipText(t,o){this.el.setAttribute("data-tooltip",t),setTimeout(()=>this.el.setAttribute("data-tooltip",""),o)}};var v=class{constructor(t){this.el=t;document.addEventListener("click",o=>{this.el.contains(o.target)||this.el.removeAttribute("open")})}};var b=class{constructor(t){this.el=t;this.el.addEventListener("change",o=>{let i=o.target,n=i.value;i.value.startsWith("/")||(n="/"+n),window.location.href=n})}};var w=class{constructor(t){this.el=t;!window.HTMLDialogElement&&!t.showModal&&Promise.resolve().then(()=>(H(),A)).then(({default:n})=>{n.registerDialog(t)});let o=t.id,i=document.querySelector(`[aria-controls="${o}"]`);i&&i.addEventListener("click",()=>{var n;this.el.showModal?this.el.showModal():this.el.open=!0,(n=t.querySelector("input"))==null||n.focus()});for(let n of this.el.querySelectorAll("[data-modal-close]"))n.addEventListener("click",()=>{this.el.close?this.el.close():this.el.open=!1})}};function f(e,t,o,i){var n;(n=window.dataLayer)!=null||(window.dataLayer=[]),typeof e=="string"?window.dataLayer.push({event:e,event_category:t,event_action:o,event_label:i}):window.dataLayer.push(e)}function I(e){var t;(t=window.dataLayer)!=null||(window.dataLayer=[]),window.dataLayer.push(e)}var O=class{constructor(){this.handlers={},document.addEventListener("keydown",t=>this.handleKeyPress(t))}on(t,o,i,n){var r,s;return(s=(r=this.handlers)[t])!=null||(r[t]=new Set),this.handlers[t].add({description:o,callback:i,...n}),this}handleKeyPress(t){var o;for(let i of(o=this.handlers[t.key.toLowerCase()])!=null?o:new Set){if(i.target&&i.target!==t.target)return;let n=t.target;if(!i.target&&((n==null?void 0:n.tagName)==="INPUT"||(n==null?void 0:n.tagName)==="SELECT"||(n==null?void 0:n.tagName)==="TEXTAREA")||(n==null?void 0:n.isContentEditable)||i.withMeta&&!(t.ctrlKey||t.metaKey)||!i.withMeta&&(t.ctrlKey||t.metaKey))return;f("keypress","hotkeys",`${t.key} pressed`,i.description),i.callback(t)}}},g=new O;L();M();for(let e of document.querySelectorAll(".js-clipboard"))new m(e);for(let e of document.querySelectorAll(".js-modal"))new w(e);for(let e of document.querySelectorAll(".js-tooltip"))new v(e);for(let e of document.querySelectorAll(".js-selectNav"))new b(e);for(let e of document.querySelectorAll(".js-carousel"))new p(e);g.on("t","toggle theme",()=>{q()});g.on("/","focus search",e=>{let t=Array.from(document.querySelectorAll(".js-searchFocus")).pop();t&&!window.navigator.userAgent.includes("Firefox")&&(e.preventDefault(),t.focus())});g.on("y","set canonical url",()=>{var t;let e=(t=document.querySelector(".js-canonicalURLPath"))==null?void 0:t.dataset.canonicalUrlPath;e&&e!==""&&window.history.replaceState(null,"",e)});(function(){f({"gtm.start":new Date().getTime(),event:"gtm.js"})})();function N(){let e=new URLSearchParams(window.location.search),t=e.get("utm_source");if(t!=="gopls"&&t!=="godoc"&&t!=="pkggodev")return;let o=new URL(window.location.href);e.delete("utm_source"),o.search=e.toString(),window.history.replaceState(null,"",o.toString())}var P;((P=document.querySelector(".js-gtmID"))==null?void 0:P.dataset.gtmid)&&window.dataLayer?I(function(){N()}):N();for(let e of document.querySelectorAll(".js-toggleTheme"))e.addEventListener("click",()=>{q()});function q(){let e="dark",t=document.documentElement.getAttribute("data-theme");t==="dark"?e="light":t==="light"&&(e="auto"),document.documentElement.setAttribute("data-theme",e),document.cookie=`prefers-color-scheme=${e};path=/;max-age=31536000;`}
+    `,(o=t.querySelector(".go-Carousel-prevSlide"))==null||o.addEventListener("click",()=>this.setActive(this.activeIndex-1)),(n=t.querySelector(".go-Carousel-nextSlide"))==null||n.addEventListener("click",()=>this.setActive(this.activeIndex+1)),this.el.append(t)}initDots(){let t=document.createElement("ul");t.classList.add("go-Carousel-dots");for(let o=0;o<this.slides.length;o++){let n=document.createElement("li"),i=document.createElement("button");i.classList.add("go-Carousel-dot"),o===this.activeIndex&&i.classList.add("go-Carousel-dot--active"),i.innerHTML=`<span class="go-Carousel-obscured">Slide ${o+1}</span>`,i.addEventListener("click",()=>this.setActive(o)),n.append(i),t.append(n),this.dots.push(i)}this.el.append(t)}initLiveRegion(){this.liveRegion.setAttribute("aria-live","polite"),this.liveRegion.setAttribute("aria-atomic","true"),this.liveRegion.setAttribute("class","go-Carousel-obscured"),this.liveRegion.textContent=`Slide ${this.activeIndex+1} of 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_=class{constructor(t){this.el=t;this.el.addEventListener("change",o=>{let n=o.target,i=n.value;n.value.startsWith("/")||(i="/"+i),window.location.href=i})}};var k=class{constructor(t){this.el=t;!window.HTMLDialogElement&&!t.showModal&&Promise.resolve().then(()=>(J(),K)).then(({default:i})=>{i.registerDialog(t)});let o=t.id,n=document.querySelector(`[aria-controls="${o}"]`);n&&n.addEventListener("click",()=>{var i;this.el.showModal?this.el.showModal():this.el.open=!0,(i=t.querySelector("input"))==null||i.focus()});for(let i of this.el.querySelectorAll("[data-modal-close]"))i.addEventListener("click",()=>{this.el.close?this.el.close():this.el.open=!1})}};function E(e,t,o,n){var i;(i=window.dataLayer)!=null||(window.dataLayer=[]),typeof e=="string"?window.dataLayer.push({event:e,event_category:t,event_action:o,event_label:n}):window.dataLayer.push(e)}function U(e){var t;(t=window.dataLayer)!=null||(window.dataLayer=[]),window.dataLayer.push(e)}var 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e=[];if(!!z){for(let t of z.querySelectorAll("[data-kind]"))e.push(ie(t));for(let t of e)t.link.addEventListener("click",function(){l==null||l.close()});return e.sort(function(t,o){return t.lower.localeCompare(o.lower)}),e}}function ie(e){var i;let t=document.createElement("a"),o=e.getAttribute("id");t.setAttribute("href","#"+o),t.setAttribute("tabindex","-1"),t.setAttribute("data-gtmc","jump to link");let n=e.getAttribute("data-kind");return{link:t,name:o!=null?o:"",kind:n!=null?n:"",lower:(i=o==null?void 0:o.toLowerCase())!=null?i:""}}var V,g=-1;function x(e){for(V=e,h||(h=ne()),C(-1);c==null?void 0:c.firstChild;)c.firstChild.remove();if(e){let t=e.toLowerCase(),o=[],n=[],i=[],s=(r,u,f)=>r.name.substring(0,u)+"<b>"+r.name.substring(u,f)+"</b>"+r.name.substring(f);for(let r of h!=null?h:[]){let u=r.name.toLowerCase();if(u===t)r.link.innerHTML=s(r,0,r.name.length),o.push(r);else if(u.startsWith(t))r.link.innerHTML=s(r,0,e.length),n.push(r);else{let 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k(e);for(let e of document.querySelectorAll(".js-tooltip"))new T(e);for(let e of document.querySelectorAll(".js-selectNav"))new _(e);for(let e of document.querySelectorAll(".js-carousel"))new M(e);H();D();$();b.on("t","toggle theme",()=>{W()});b.on("/","focus search",e=>{let t=Array.from(document.querySelectorAll(".js-searchFocus")).pop();t&&!window.navigator.userAgent.includes("Firefox")&&(e.preventDefault(),t.focus())});b.on("y","set canonical url",()=>{var t;let e=(t=document.querySelector(".js-canonicalURLPath"))==null?void 0:t.dataset.canonicalUrlPath;e&&e!==""&&window.history.replaceState(null,"",e)});(function(){E({"gtm.start":new Date().getTime(),event:"gtm.js"})})();function G(){let e=new URLSearchParams(window.location.search),t=e.get("utm_source");if(t!=="gopls"&&t!=="godoc"&&t!=="pkggodev")return;let o=new URL(window.location.href);e.delete("utm_source"),o.search=e.toString(),window.history.replaceState(null,"",o.toString())}var X;((X=document.querySelector(".js-gtmID"))==null?void 0:X.dataset.gtmid)&&window.dataLayer?U(function(){G()}):G();for(let e of document.querySelectorAll(".js-toggleTheme"))e.addEventListener("click",()=>{W()});function W(){let e="dark",t=document.documentElement.getAttribute("data-theme");t==="dark"?e="light":t==="light"&&(e="auto"),document.documentElement.setAttribute("data-theme",e),document.cookie=`prefers-color-scheme=${e};path=/;max-age=31536000;`}
 /*!
  * @license
  * Copyright 2019-2020 The Go Authors. All rights reserved.
diff --git a/static/frontend/frontend.js.map b/static/frontend/frontend.js.map
index 68e72b0..3bc0895 100644
--- a/static/frontend/frontend.js.map
+++ b/static/frontend/frontend.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
-  "sources": ["../../third_party/dialog-polyfill/dialog-polyfill.esm.js", "../shared/header/header.ts", "../shared/carousel/carousel.ts", "../shared/clipboard/clipboard.ts", "../shared/tooltip/tooltip.ts", "../shared/outline/select.ts", "../shared/modal/modal.ts", "../shared/analytics/analytics.ts", "../shared/keyboard/keyboard.ts", "frontend.ts"],
-  "sourcesContent": ["// nb. This is for IE10 and lower _only_.\nvar supportCustomEvent = window.CustomEvent;\nif (!supportCustomEvent || typeof supportCustomEvent === 'object') {\n  supportCustomEvent = function CustomEvent(event, x) {\n    x = x || {};\n    var ev = document.createEvent('CustomEvent');\n    ev.initCustomEvent(event, !!x.bubbles, !!x.cancelable, x.detail || null);\n    return ev;\n  };\n  supportCustomEvent.prototype = window.Event.prototype;\n}\n\n/**\n * @param {Element} el to check for stacking context\n * @return {boolean} whether this el or its parents creates a stacking context\n */\nfunction createsStackingContext(el) {\n  while (el && el !== document.body) {\n    var s = window.getComputedStyle(el);\n    var invalid = function(k, ok) {\n      return !(s[k] === undefined || s[k] === ok);\n    };\n\n    if (s.opacity < 1 ||\n        invalid('zIndex', 'auto') ||\n        invalid('transform', 'none') ||\n        invalid('mixBlendMode', 'normal') ||\n        invalid('filter', 'none') ||\n        invalid('perspective', 'none') ||\n        s['isolation'] === 'isolate' ||\n        s.position === 'fixed' ||\n        s.webkitOverflowScrolling === 'touch') {\n      return true;\n    }\n    el = el.parentElement;\n  }\n  return false;\n}\n\n/**\n * Finds the nearest <dialog> from the passed element.\n *\n * @param {Element} el to search from\n * @return {HTMLDialogElement} dialog found\n */\nfunction findNearestDialog(el) {\n  while (el) {\n    if (el.localName === 'dialog') {\n      return /** @type {HTMLDialogElement} */ (el);\n    }\n    el = el.parentElement;\n  }\n  return null;\n}\n\n/**\n * Blur the specified element, as long as it's not the HTML body element.\n * This works around an IE9/10 bug - blurring the body causes Windows to\n * blur the whole application.\n *\n * @param {Element} el to blur\n */\nfunction safeBlur(el) {\n  if (el && el.blur && el !== document.body) {\n    el.blur();\n  }\n}\n\n/**\n * @param {!NodeList} nodeList to search\n * @param {Node} node to find\n * @return {boolean} whether node is inside nodeList\n */\nfunction inNodeList(nodeList, node) {\n  for (var i = 0; i < nodeList.length; ++i) {\n    if (nodeList[i] === node) {\n      return true;\n    }\n  }\n  return false;\n}\n\n/**\n * @param {HTMLFormElement} el to check\n * @return {boolean} whether this form has method=\"dialog\"\n */\nfunction isFormMethodDialog(el) {\n  if (!el || !el.hasAttribute('method')) {\n    return false;\n  }\n  return el.getAttribute('method').toLowerCase() === 'dialog';\n}\n\n/**\n * @param {!HTMLDialogElement} dialog to upgrade\n * @constructor\n */\nfunction dialogPolyfillInfo(dialog) {\n  this.dialog_ = dialog;\n  this.replacedStyleTop_ = false;\n  this.openAsModal_ = false;\n\n  // Set a11y role. Browsers that support dialog implicitly know this already.\n  if (!dialog.hasAttribute('role')) {\n    dialog.setAttribute('role', 'dialog');\n  }\n\n  dialog.show = this.show.bind(this);\n  dialog.showModal = this.showModal.bind(this);\n  dialog.close = this.close.bind(this);\n\n  if (!('returnValue' in dialog)) {\n    dialog.returnValue = '';\n  }\n\n  if ('MutationObserver' in window) {\n    var mo = new MutationObserver(this.maybeHideModal.bind(this));\n    mo.observe(dialog, {attributes: true, attributeFilter: ['open']});\n  } else {\n    // IE10 and below support. Note that DOMNodeRemoved etc fire _before_ removal. They also\n    // seem to fire even if the element was removed as part of a parent removal. Use the removed\n    // events to force downgrade (useful if removed/immediately added).\n    var removed = false;\n    var cb = function() {\n      removed ? this.downgradeModal() : this.maybeHideModal();\n      removed = false;\n    }.bind(this);\n    var timeout;\n    var delayModel = function(ev) {\n      if (ev.target !== dialog) { return; }  // not for a child element\n      var cand = 'DOMNodeRemoved';\n      removed |= (ev.type.substr(0, cand.length) === cand);\n      window.clearTimeout(timeout);\n      timeout = window.setTimeout(cb, 0);\n    };\n    ['DOMAttrModified', 'DOMNodeRemoved', 'DOMNodeRemovedFromDocument'].forEach(function(name) {\n      dialog.addEventListener(name, delayModel);\n    });\n  }\n  // Note that the DOM is observed inside DialogManager while any dialog\n  // is being displayed as a modal, to catch modal removal from the DOM.\n\n  Object.defineProperty(dialog, 'open', {\n    set: this.setOpen.bind(this),\n    get: dialog.hasAttribute.bind(dialog, 'open')\n  });\n\n  this.backdrop_ = document.createElement('div');\n  this.backdrop_.className = 'backdrop';\n  this.backdrop_.addEventListener('click', this.backdropClick_.bind(this));\n}\n\ndialogPolyfillInfo.prototype = {\n\n  get dialog() {\n    return this.dialog_;\n  },\n\n  /**\n   * Maybe remove this dialog from the modal top layer. This is called when\n   * a modal dialog may no longer be tenable, e.g., when the dialog is no\n   * longer open or is no longer part of the DOM.\n   */\n  maybeHideModal: function() {\n    if (this.dialog_.hasAttribute('open') && document.body.contains(this.dialog_)) { return; }\n    this.downgradeModal();\n  },\n\n  /**\n   * Remove this dialog from the modal top layer, leaving it as a non-modal.\n   */\n  downgradeModal: function() {\n    if (!this.openAsModal_) { return; }\n    this.openAsModal_ = false;\n    this.dialog_.style.zIndex = '';\n\n    // This won't match the native <dialog> exactly because if the user set top on a centered\n    // polyfill dialog, that top gets thrown away when the dialog is closed. Not sure it's\n    // possible to polyfill this perfectly.\n    if (this.replacedStyleTop_) {\n      this.dialog_.style.top = '';\n      this.replacedStyleTop_ = false;\n    }\n\n    // Clear the backdrop and remove from the manager.\n    this.backdrop_.parentNode && this.backdrop_.parentNode.removeChild(this.backdrop_);\n    dialogPolyfill.dm.removeDialog(this);\n  },\n\n  /**\n   * @param {boolean} value whether to open or close this dialog\n   */\n  setOpen: function(value) {\n    if (value) {\n      this.dialog_.hasAttribute('open') || this.dialog_.setAttribute('open', '');\n    } else {\n      this.dialog_.removeAttribute('open');\n      this.maybeHideModal();  // nb. redundant with MutationObserver\n    }\n  },\n\n  /**\n   * Handles clicks on the fake .backdrop element, redirecting them as if\n   * they were on the dialog itself.\n   *\n   * @param {!Event} e to redirect\n   */\n  backdropClick_: function(e) {\n    if (!this.dialog_.hasAttribute('tabindex')) {\n      // Clicking on the backdrop should move the implicit cursor, even if dialog cannot be\n      // focused. Create a fake thing to focus on. If the backdrop was _before_ the dialog, this\n      // would not be needed - clicks would move the implicit cursor there.\n      var fake = document.createElement('div');\n      this.dialog_.insertBefore(fake, this.dialog_.firstChild);\n      fake.tabIndex = -1;\n      fake.focus();\n      this.dialog_.removeChild(fake);\n    } else {\n      this.dialog_.focus();\n    }\n\n    var redirectedEvent = document.createEvent('MouseEvents');\n    redirectedEvent.initMouseEvent(e.type, e.bubbles, e.cancelable, window,\n        e.detail, e.screenX, e.screenY, e.clientX, e.clientY, e.ctrlKey,\n        e.altKey, e.shiftKey, e.metaKey, e.button, e.relatedTarget);\n    this.dialog_.dispatchEvent(redirectedEvent);\n    e.stopPropagation();\n  },\n\n  /**\n   * Focuses on the first focusable element within the dialog. This will always blur the current\n   * focus, even if nothing within the dialog is found.\n   */\n  focus_: function() {\n    // Find element with `autofocus` attribute, or fall back to the first form/tabindex control.\n    var target = this.dialog_.querySelector('[autofocus]:not([disabled])');\n    if (!target && this.dialog_.tabIndex >= 0) {\n      target = this.dialog_;\n    }\n    if (!target) {\n      // Note that this is 'any focusable area'. This list is probably not exhaustive, but the\n      // alternative involves stepping through and trying to focus everything.\n      var opts = ['button', 'input', 'keygen', 'select', 'textarea'];\n      var query = opts.map(function(el) {\n        return el + ':not([disabled])';\n      });\n      // TODO(samthor): tabindex values that are not numeric are not focusable.\n      query.push('[tabindex]:not([disabled]):not([tabindex=\"\"])');  // tabindex != \"\", not disabled\n      target = this.dialog_.querySelector(query.join(', '));\n    }\n    safeBlur(document.activeElement);\n    target && target.focus();\n  },\n\n  /**\n   * Sets the zIndex for the backdrop and dialog.\n   *\n   * @param {number} dialogZ\n   * @param {number} backdropZ\n   */\n  updateZIndex: function(dialogZ, backdropZ) {\n    if (dialogZ < backdropZ) {\n      throw new Error('dialogZ should never be < backdropZ');\n    }\n    this.dialog_.style.zIndex = dialogZ;\n    this.backdrop_.style.zIndex = backdropZ;\n  },\n\n  /**\n   * Shows the dialog. If the dialog is already open, this does nothing.\n   */\n  show: function() {\n    if (!this.dialog_.open) {\n      this.setOpen(true);\n      this.focus_();\n    }\n  },\n\n  /**\n   * Show this dialog modally.\n   */\n  showModal: function() {\n    if (this.dialog_.hasAttribute('open')) {\n      throw new Error('Failed to execute \\'showModal\\' on dialog: The element is already open, and therefore cannot be opened modally.');\n    }\n    if (!document.body.contains(this.dialog_)) {\n      throw new Error('Failed to execute \\'showModal\\' on dialog: The element is not in a Document.');\n    }\n    if (!dialogPolyfill.dm.pushDialog(this)) {\n      throw new Error('Failed to execute \\'showModal\\' on dialog: There are too many open modal dialogs.');\n    }\n\n    if (createsStackingContext(this.dialog_.parentElement)) {\n      console.warn('A dialog is being shown inside a stacking context. ' +\n          'This may cause it to be unusable. For more information, see this link: ' +\n          'https://github.com/GoogleChrome/dialog-polyfill/#stacking-context');\n    }\n\n    this.setOpen(true);\n    this.openAsModal_ = true;\n\n    // Optionally center vertically, relative to the current viewport.\n    if (dialogPolyfill.needsCentering(this.dialog_)) {\n      dialogPolyfill.reposition(this.dialog_);\n      this.replacedStyleTop_ = true;\n    } else {\n      this.replacedStyleTop_ = false;\n    }\n\n    // Insert backdrop.\n    this.dialog_.parentNode.insertBefore(this.backdrop_, this.dialog_.nextSibling);\n\n    // Focus on whatever inside the dialog.\n    this.focus_();\n  },\n\n  /**\n   * Closes this HTMLDialogElement. This is optional vs clearing the open\n   * attribute, however this fires a 'close' event.\n   *\n   * @param {string=} opt_returnValue to use as the returnValue\n   */\n  close: function(opt_returnValue) {\n    if (!this.dialog_.hasAttribute('open')) {\n      throw new Error('Failed to execute \\'close\\' on dialog: The element does not have an \\'open\\' attribute, and therefore cannot be closed.');\n    }\n    this.setOpen(false);\n\n    // Leave returnValue untouched in case it was set directly on the element\n    if (opt_returnValue !== undefined) {\n      this.dialog_.returnValue = opt_returnValue;\n    }\n\n    // Triggering \"close\" event for any attached listeners on the <dialog>.\n    var closeEvent = new supportCustomEvent('close', {\n      bubbles: false,\n      cancelable: false\n    });\n    this.dialog_.dispatchEvent(closeEvent);\n  }\n\n};\n\nvar dialogPolyfill = {};\n\ndialogPolyfill.reposition = function(element) {\n  var scrollTop = document.body.scrollTop || document.documentElement.scrollTop;\n  var topValue = scrollTop + (window.innerHeight - element.offsetHeight) / 2;\n  element.style.top = Math.max(scrollTop, topValue) + 'px';\n};\n\ndialogPolyfill.isInlinePositionSetByStylesheet = function(element) {\n  for (var i = 0; i < document.styleSheets.length; ++i) {\n    var styleSheet = document.styleSheets[i];\n    var cssRules = null;\n    // Some browsers throw on cssRules.\n    try {\n      cssRules = styleSheet.cssRules;\n    } catch (e) {}\n    if (!cssRules) { continue; }\n    for (var j = 0; j < cssRules.length; ++j) {\n      var rule = cssRules[j];\n      var selectedNodes = null;\n      // Ignore errors on invalid selector texts.\n      try {\n        selectedNodes = document.querySelectorAll(rule.selectorText);\n      } catch(e) {}\n      if (!selectedNodes || !inNodeList(selectedNodes, element)) {\n        continue;\n      }\n      var cssTop = rule.style.getPropertyValue('top');\n      var cssBottom = rule.style.getPropertyValue('bottom');\n      if ((cssTop && cssTop !== 'auto') || (cssBottom && cssBottom !== 'auto')) {\n        return true;\n      }\n    }\n  }\n  return false;\n};\n\ndialogPolyfill.needsCentering = function(dialog) {\n  var computedStyle = window.getComputedStyle(dialog);\n  if (computedStyle.position !== 'absolute') {\n    return false;\n  }\n\n  // We must determine whether the top/bottom specified value is non-auto.  In\n  // WebKit/Blink, checking computedStyle.top == 'auto' is sufficient, but\n  // Firefox returns the used value. So we do this crazy thing instead: check\n  // the inline style and then go through CSS rules.\n  if ((dialog.style.top !== 'auto' && dialog.style.top !== '') ||\n      (dialog.style.bottom !== 'auto' && dialog.style.bottom !== '')) {\n    return false;\n  }\n  return !dialogPolyfill.isInlinePositionSetByStylesheet(dialog);\n};\n\n/**\n * @param {!Element} element to force upgrade\n */\ndialogPolyfill.forceRegisterDialog = function(element) {\n  if (window.HTMLDialogElement || element.showModal) {\n    console.warn('This browser already supports <dialog>, the polyfill ' +\n        'may not work correctly', element);\n  }\n  if (element.localName !== 'dialog') {\n    throw new Error('Failed to register dialog: The element is not a dialog.');\n  }\n  new dialogPolyfillInfo(/** @type {!HTMLDialogElement} */ (element));\n};\n\n/**\n * @param {!Element} element to upgrade, if necessary\n */\ndialogPolyfill.registerDialog = function(element) {\n  if (!element.showModal) {\n    dialogPolyfill.forceRegisterDialog(element);\n  }\n};\n\n/**\n * @constructor\n */\ndialogPolyfill.DialogManager = function() {\n  /** @type {!Array<!dialogPolyfillInfo>} */\n  this.pendingDialogStack = [];\n\n  var checkDOM = this.checkDOM_.bind(this);\n\n  // The overlay is used to simulate how a modal dialog blocks the document.\n  // The blocking dialog is positioned on top of the overlay, and the rest of\n  // the dialogs on the pending dialog stack are positioned below it. In the\n  // actual implementation, the modal dialog stacking is controlled by the\n  // top layer, where z-index has no effect.\n  this.overlay = document.createElement('div');\n  this.overlay.className = '_dialog_overlay';\n  this.overlay.addEventListener('click', function(e) {\n    this.forwardTab_ = undefined;\n    e.stopPropagation();\n    checkDOM([]);  // sanity-check DOM\n  }.bind(this));\n\n  this.handleKey_ = this.handleKey_.bind(this);\n  this.handleFocus_ = this.handleFocus_.bind(this);\n\n  this.zIndexLow_ = 100000;\n  this.zIndexHigh_ = 100000 + 150;\n\n  this.forwardTab_ = undefined;\n\n  if ('MutationObserver' in window) {\n    this.mo_ = new MutationObserver(function(records) {\n      var removed = [];\n      records.forEach(function(rec) {\n        for (var i = 0, c; c = rec.removedNodes[i]; ++i) {\n          if (!(c instanceof Element)) {\n            continue;\n          } else if (c.localName === 'dialog') {\n            removed.push(c);\n          }\n          removed = removed.concat(c.querySelectorAll('dialog'));\n        }\n      });\n      removed.length && checkDOM(removed);\n    });\n  }\n};\n\n/**\n * Called on the first modal dialog being shown. Adds the overlay and related\n * handlers.\n */\ndialogPolyfill.DialogManager.prototype.blockDocument = function() {\n  document.documentElement.addEventListener('focus', this.handleFocus_, true);\n  document.addEventListener('keydown', this.handleKey_);\n  this.mo_ && this.mo_.observe(document, {childList: true, subtree: true});\n};\n\n/**\n * Called on the first modal dialog being removed, i.e., when no more modal\n * dialogs are visible.\n */\ndialogPolyfill.DialogManager.prototype.unblockDocument = function() {\n  document.documentElement.removeEventListener('focus', this.handleFocus_, true);\n  document.removeEventListener('keydown', this.handleKey_);\n  this.mo_ && this.mo_.disconnect();\n};\n\n/**\n * Updates the stacking of all known dialogs.\n */\ndialogPolyfill.DialogManager.prototype.updateStacking = function() {\n  var zIndex = this.zIndexHigh_;\n\n  for (var i = 0, dpi; dpi = this.pendingDialogStack[i]; ++i) {\n    dpi.updateZIndex(--zIndex, --zIndex);\n    if (i === 0) {\n      this.overlay.style.zIndex = --zIndex;\n    }\n  }\n\n  // Make the overlay a sibling of the dialog itself.\n  var last = this.pendingDialogStack[0];\n  if (last) {\n    var p = last.dialog.parentNode || document.body;\n    p.appendChild(this.overlay);\n  } else if (this.overlay.parentNode) {\n    this.overlay.parentNode.removeChild(this.overlay);\n  }\n};\n\n/**\n * @param {Element} candidate to check if contained or is the top-most modal dialog\n * @return {boolean} whether candidate is contained in top dialog\n */\ndialogPolyfill.DialogManager.prototype.containedByTopDialog_ = function(candidate) {\n  while (candidate = findNearestDialog(candidate)) {\n    for (var i = 0, dpi; dpi = this.pendingDialogStack[i]; ++i) {\n      if (dpi.dialog === candidate) {\n        return i === 0;  // only valid if top-most\n      }\n    }\n    candidate = candidate.parentElement;\n  }\n  return false;\n};\n\ndialogPolyfill.DialogManager.prototype.handleFocus_ = function(event) {\n  if (this.containedByTopDialog_(event.target)) { return; }\n\n  if (document.activeElement === document.documentElement) { return; }\n\n  event.preventDefault();\n  event.stopPropagation();\n  safeBlur(/** @type {Element} */ (event.target));\n\n  if (this.forwardTab_ === undefined) { return; }  // move focus only from a tab key\n\n  var dpi = this.pendingDialogStack[0];\n  var dialog = dpi.dialog;\n  var position = dialog.compareDocumentPosition(event.target);\n  if (position & Node.DOCUMENT_POSITION_PRECEDING) {\n    if (this.forwardTab_) {\n      // forward\n      dpi.focus_();\n    } else if (event.target !== document.documentElement) {\n      // backwards if we're not already focused on <html>\n      document.documentElement.focus();\n    }\n  }\n\n  return false;\n};\n\ndialogPolyfill.DialogManager.prototype.handleKey_ = function(event) {\n  this.forwardTab_ = undefined;\n  if (event.keyCode === 27) {\n    event.preventDefault();\n    event.stopPropagation();\n    var cancelEvent = new supportCustomEvent('cancel', {\n      bubbles: false,\n      cancelable: true\n    });\n    var dpi = this.pendingDialogStack[0];\n    if (dpi && dpi.dialog.dispatchEvent(cancelEvent)) {\n      dpi.dialog.close();\n    }\n  } else if (event.keyCode === 9) {\n    this.forwardTab_ = !event.shiftKey;\n  }\n};\n\n/**\n * Finds and downgrades any known modal dialogs that are no longer displayed. Dialogs that are\n * removed and immediately readded don't stay modal, they become normal.\n *\n * @param {!Array<!HTMLDialogElement>} removed that have definitely been removed\n */\ndialogPolyfill.DialogManager.prototype.checkDOM_ = function(removed) {\n  // This operates on a clone because it may cause it to change. Each change also calls\n  // updateStacking, which only actually needs to happen once. But who removes many modal dialogs\n  // at a time?!\n  var clone = this.pendingDialogStack.slice();\n  clone.forEach(function(dpi) {\n    if (removed.indexOf(dpi.dialog) !== -1) {\n      dpi.downgradeModal();\n    } else {\n      dpi.maybeHideModal();\n    }\n  });\n};\n\n/**\n * @param {!dialogPolyfillInfo} dpi\n * @return {boolean} whether the dialog was allowed\n */\ndialogPolyfill.DialogManager.prototype.pushDialog = function(dpi) {\n  var allowed = (this.zIndexHigh_ - this.zIndexLow_) / 2 - 1;\n  if (this.pendingDialogStack.length >= allowed) {\n    return false;\n  }\n  if (this.pendingDialogStack.unshift(dpi) === 1) {\n    this.blockDocument();\n  }\n  this.updateStacking();\n  return true;\n};\n\n/**\n * @param {!dialogPolyfillInfo} dpi\n */\ndialogPolyfill.DialogManager.prototype.removeDialog = function(dpi) {\n  var index = this.pendingDialogStack.indexOf(dpi);\n  if (index === -1) { return; }\n\n  this.pendingDialogStack.splice(index, 1);\n  if (this.pendingDialogStack.length === 0) {\n    this.unblockDocument();\n  }\n  this.updateStacking();\n};\n\ndialogPolyfill.dm = new dialogPolyfill.DialogManager();\ndialogPolyfill.formSubmitter = null;\ndialogPolyfill.useValue = null;\n\n/**\n * Installs global handlers, such as click listers and native method overrides. These are needed\n * even if a no dialog is registered, as they deal with <form method=\"dialog\">.\n */\nif (window.HTMLDialogElement === undefined) {\n\n  /**\n   * If HTMLFormElement translates method=\"DIALOG\" into 'get', then replace the descriptor with\n   * one that returns the correct value.\n   */\n  var testForm = document.createElement('form');\n  testForm.setAttribute('method', 'dialog');\n  if (testForm.method !== 'dialog') {\n    var methodDescriptor = Object.getOwnPropertyDescriptor(HTMLFormElement.prototype, 'method');\n    if (methodDescriptor) {\n      // nb. Some older iOS and older PhantomJS fail to return the descriptor. Don't do anything\n      // and don't bother to update the element.\n      var realGet = methodDescriptor.get;\n      methodDescriptor.get = function() {\n        if (isFormMethodDialog(this)) {\n          return 'dialog';\n        }\n        return realGet.call(this);\n      };\n      var realSet = methodDescriptor.set;\n      methodDescriptor.set = function(v) {\n        if (typeof v === 'string' && v.toLowerCase() === 'dialog') {\n          return this.setAttribute('method', v);\n        }\n        return realSet.call(this, v);\n      };\n      Object.defineProperty(HTMLFormElement.prototype, 'method', methodDescriptor);\n    }\n  }\n\n  /**\n   * Global 'click' handler, to capture the <input type=\"submit\"> or <button> element which has\n   * submitted a <form method=\"dialog\">. Needed as Safari and others don't report this inside\n   * document.activeElement.\n   */\n  document.addEventListener('click', function(ev) {\n    dialogPolyfill.formSubmitter = null;\n    dialogPolyfill.useValue = null;\n    if (ev.defaultPrevented) { return; }  // e.g. a submit which prevents default submission\n\n    var target = /** @type {Element} */ (ev.target);\n    if (!target || !isFormMethodDialog(target.form)) { return; }\n\n    var valid = (target.type === 'submit' && ['button', 'input'].indexOf(target.localName) > -1);\n    if (!valid) {\n      if (!(target.localName === 'input' && target.type === 'image')) { return; }\n      // this is a <input type=\"image\">, which can submit forms\n      dialogPolyfill.useValue = ev.offsetX + ',' + ev.offsetY;\n    }\n\n    var dialog = findNearestDialog(target);\n    if (!dialog) { return; }\n\n    dialogPolyfill.formSubmitter = target;\n\n  }, false);\n\n  /**\n   * Replace the native HTMLFormElement.submit() method, as it won't fire the\n   * submit event and give us a chance to respond.\n   */\n  var nativeFormSubmit = HTMLFormElement.prototype.submit;\n  var replacementFormSubmit = function () {\n    if (!isFormMethodDialog(this)) {\n      return nativeFormSubmit.call(this);\n    }\n    var dialog = findNearestDialog(this);\n    dialog && dialog.close();\n  };\n  HTMLFormElement.prototype.submit = replacementFormSubmit;\n\n  /**\n   * Global form 'dialog' method handler. Closes a dialog correctly on submit\n   * and possibly sets its return value.\n   */\n  document.addEventListener('submit', function(ev) {\n    if (ev.defaultPrevented) { return; }  // e.g. a submit which prevents default submission\n\n    var form = /** @type {HTMLFormElement} */ (ev.target);\n    if (!isFormMethodDialog(form)) { return; }\n    ev.preventDefault();\n\n    var dialog = findNearestDialog(form);\n    if (!dialog) { return; }\n\n    // Forms can only be submitted via .submit() or a click (?), but anyway: sanity-check that\n    // the submitter is correct before using its value as .returnValue.\n    var s = dialogPolyfill.formSubmitter;\n    if (s && s.form === form) {\n      dialog.close(dialogPolyfill.useValue || s.value);\n    } else {\n      dialog.close();\n    }\n    dialogPolyfill.formSubmitter = null;\n\n  }, false);\n}\n\nexport default dialogPolyfill;\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nexport function registerHeaderListeners(): void {\n  const header = document.querySelector('.js-header');\n  const menuButtons = document.querySelectorAll('.js-headerMenuButton');\n  menuButtons.forEach(button => {\n    button.addEventListener('click', e => {\n      e.preventDefault();\n      header?.classList.toggle('is-active');\n      button.setAttribute('aria-expanded', String(header?.classList.contains('is-active')));\n    });\n  });\n\n  const scrim = document.querySelector('.js-scrim');\n  scrim?.addEventListener('click', e => {\n    e.preventDefault();\n    header?.classList.remove('is-active');\n    menuButtons.forEach(button => {\n      button.setAttribute('aria-expanded', String(header?.classList.contains('is-active')));\n    });\n  });\n}\n\nexport function registerSearchFormListeners(): void {\n  const searchForm = document.querySelector('.js-searchForm');\n  const expandSearch = document.querySelector('.js-expandSearch');\n  const input = searchForm?.querySelector('input');\n  const headerLogo = document.querySelector('.js-headerLogo');\n  const menuButton = document.querySelector('.js-headerMenuButton');\n  expandSearch?.addEventListener('click', () => {\n    searchForm?.classList.add('go-SearchForm--expanded');\n    headerLogo?.classList.add('go-Header-logo--hidden');\n    menuButton?.classList.add('go-Header-navOpen--hidden');\n    input?.focus();\n  });\n  document?.addEventListener('click', e => {\n    if (!searchForm?.contains(e.target as Node)) {\n      searchForm?.classList.remove('go-SearchForm--expanded');\n      headerLogo?.classList.remove('go-Header-logo--hidden');\n      menuButton?.classList.remove('go-Header-navOpen--hidden');\n    }\n  });\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * Carousel Controller adds event listeners, accessibilty enhancements, and\n * control elements to a carousel component.\n */\nexport class CarouselController {\n  /**\n   * slides is a collection of slides in the carousel.\n   */\n  private slides: HTMLLIElement[];\n  /**\n   * dots is a collection of dot navigation controls, added to the carousel\n   * by this controller.\n   */\n  private dots: HTMLElement[];\n  /**\n   * liveRegion is a visually hidden element that notifies assitive devices\n   * of visual changes to the carousel. They are added to the carousel by\n   * this controller.\n   */\n  private liveRegion: HTMLElement;\n  /**\n   * activeIndex is the 0-index of the currently active slide.\n   */\n  private activeIndex: number;\n\n  constructor(private el: HTMLElement) {\n    this.slides = Array.from(el.querySelectorAll('.go-Carousel-slide'));\n    this.dots = [];\n    this.liveRegion = document.createElement('div');\n    this.activeIndex = Number(el.getAttribute('data-slide-index') ?? 0);\n\n    this.initSlides();\n    this.initArrows();\n    this.initDots();\n    this.initLiveRegion();\n  }\n\n  private initSlides() {\n    for (const [i, v] of this.slides.entries()) {\n      if (i === this.activeIndex) continue;\n      v.setAttribute('aria-hidden', 'true');\n    }\n  }\n\n  private initArrows() {\n    const arrows = document.createElement('ul');\n    arrows.classList.add('go-Carousel-arrows');\n    arrows.innerHTML = `\n      <li>\n        <button class=\"go-Carousel-prevSlide\" aria-label=\"Go to previous slide\">\n          <img class=\"go-Icon\" height=\"24\" width=\"24\" src=\"/static/shared/icon/arrow_left_gm_grey_24dp.svg\" alt=\"\">\n        </button>\n      </li>\n      <li>\n        <button class=\"go-Carousel-nextSlide\" aria-label=\"Go to next slide\">\n          <img class=\"go-Icon\" height=\"24\" width=\"24\" src=\"/static/shared/icon/arrow_right_gm_grey_24dp.svg\" alt=\"\">\n        </button>\n      </li>\n    `;\n    arrows\n      .querySelector('.go-Carousel-prevSlide')\n      ?.addEventListener('click', () => this.setActive(this.activeIndex - 1));\n    arrows\n      .querySelector('.go-Carousel-nextSlide')\n      ?.addEventListener('click', () => this.setActive(this.activeIndex + 1));\n    this.el.append(arrows);\n  }\n\n  private initDots() {\n    const dots = document.createElement('ul');\n    dots.classList.add('go-Carousel-dots');\n    for (let i = 0; i < this.slides.length; i++) {\n      const li = document.createElement('li');\n      const button = document.createElement('button');\n      button.classList.add('go-Carousel-dot');\n      if (i === this.activeIndex) {\n        button.classList.add('go-Carousel-dot--active');\n      }\n      button.innerHTML = `<span class=\"go-Carousel-obscured\">Slide ${i + 1}</span>`;\n      button.addEventListener('click', () => this.setActive(i));\n      li.append(button);\n      dots.append(li);\n      this.dots.push(button);\n    }\n    this.el.append(dots);\n  }\n\n  private initLiveRegion() {\n    this.liveRegion.setAttribute('aria-live', 'polite');\n    this.liveRegion.setAttribute('aria-atomic', 'true');\n    this.liveRegion.setAttribute('class', 'go-Carousel-obscured');\n    this.liveRegion.textContent = `Slide ${this.activeIndex + 1} of ${this.slides.length}`;\n    this.el.appendChild(this.liveRegion);\n  }\n\n  private setActive = (index: number) => {\n    this.activeIndex = (index + this.slides.length) % this.slides.length;\n    this.el.setAttribute('data-slide-index', String(this.activeIndex));\n    for (const d of this.dots) {\n      d.classList.remove('go-Carousel-dot--active');\n    }\n    this.dots[this.activeIndex].classList.add('go-Carousel-dot--active');\n    for (const s of this.slides) {\n      s.setAttribute('aria-hidden', 'true');\n    }\n    this.slides[this.activeIndex].removeAttribute('aria-hidden');\n    this.liveRegion.textContent = 'Slide ' + (this.activeIndex + 1) + ' of ' + this.slides.length;\n  };\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * This class decorates an element to copy arbitrary data attached via a data-\n * attribute to the clipboard.\n */\nexport class ClipboardController {\n  /**\n   * The data to be copied to the clipboard.\n   */\n  private data: string;\n\n  /**\n   * @param el The element that will trigger copying text to the clipboard. The text is\n   * expected to be within its data-to-copy attribute.\n   */\n  constructor(private el: HTMLButtonElement) {\n    this.data = el.dataset['toCopy'] ?? el.innerText;\n    // if data-to-copy is empty and the button is part of an input group\n    // capture the value of the input.\n    if (!this.data && el.parentElement?.classList.contains('go-InputGroup')) {\n      this.data = (this.data || el.parentElement?.querySelector('input')?.value) ?? '';\n    }\n    el.addEventListener('click', e => this.handleCopyClick(e));\n  }\n\n  /**\n   * Handles when the primary element is clicked.\n   */\n  handleCopyClick(e: MouseEvent): void {\n    e.preventDefault();\n    const TOOLTIP_SHOW_DURATION_MS = 1000;\n\n    // This API is not available on iOS.\n    if (!navigator.clipboard) {\n      this.showTooltipText('Unable to copy', TOOLTIP_SHOW_DURATION_MS);\n      return;\n    }\n    navigator.clipboard\n      .writeText(this.data)\n      .then(() => {\n        this.showTooltipText('Copied!', TOOLTIP_SHOW_DURATION_MS);\n      })\n      .catch(() => {\n        this.showTooltipText('Unable to copy', TOOLTIP_SHOW_DURATION_MS);\n      });\n  }\n\n  /**\n   * Shows the given text in a tooltip for a specified amount of time, in milliseconds.\n   */\n  showTooltipText(text: string, durationMs: number): void {\n    this.el.setAttribute('data-tooltip', text);\n    setTimeout(() => this.el.setAttribute('data-tooltip', ''), durationMs);\n  }\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * ToolTipController handles closing tooltips on external clicks.\n */\nexport class ToolTipController {\n  constructor(private el: HTMLDetailsElement) {\n    document.addEventListener('click', e => {\n      const insideTooltip = this.el.contains(e.target as Element);\n      if (!insideTooltip) {\n        this.el.removeAttribute('open');\n      }\n    });\n  }\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { TreeNavController } from './tree.js';\n\nexport class SelectNavController {\n  constructor(private el: Element) {\n    this.el.addEventListener('change', e => {\n      const target = e.target as HTMLSelectElement;\n      let href = target.value;\n      if (!target.value.startsWith('/')) {\n        href = '/' + href;\n      }\n      window.location.href = href;\n    });\n  }\n}\n\nexport function makeSelectNav(tree: TreeNavController): HTMLLabelElement {\n  const label = document.createElement('label');\n  label.classList.add('go-Label');\n  label.setAttribute('aria-label', 'Menu');\n  const select = document.createElement('select');\n  select.classList.add('go-Select', 'js-selectNav');\n  label.appendChild(select);\n  const outline = document.createElement('optgroup');\n  outline.label = 'Outline';\n  select.appendChild(outline);\n  const groupMap: Record<string, HTMLOptGroupElement> = {};\n  let group: HTMLOptGroupElement;\n  for (const t of tree.treeitems) {\n    if (Number(t.depth) > 4) continue;\n    if (t.groupTreeitem) {\n      group = groupMap[t.groupTreeitem.label];\n      if (!group) {\n        group = groupMap[t.groupTreeitem.label] = document.createElement('optgroup');\n        group.label = t.groupTreeitem.label;\n        select.appendChild(group);\n      }\n    } else {\n      group = outline;\n    }\n    const o = document.createElement('option');\n    o.label = t.label;\n    o.textContent = t.label;\n    o.value = (t.el as HTMLAnchorElement).href.replace(window.location.origin, '').replace('/', '');\n    group.appendChild(o);\n  }\n  tree.addObserver(t => {\n    const hash = (t.el as HTMLAnchorElement).hash;\n    const value = select.querySelector<HTMLOptionElement>(`[value$=\"${hash}\"]`)?.value;\n    if (value) {\n      select.value = value;\n    }\n  }, 50);\n  return label;\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * ModalController registers a dialog element with the polyfill if\n * necessary for the current browser, add adds event listeners to\n * close and open modals.\n */\nexport class ModalController {\n  constructor(private el: HTMLDialogElement) {\n    // Only load the dialog polyfill if necessary for the environment.\n    if (!window.HTMLDialogElement && !el.showModal) {\n      import('../../../third_party/dialog-polyfill/dialog-polyfill.esm.js').then(\n        ({ default: polyfill }) => {\n          polyfill.registerDialog(el);\n        }\n      );\n    }\n    const id = el.id;\n    const button = document.querySelector<HTMLButtonElement>(`[aria-controls=\"${id}\"]`);\n    if (button) {\n      button.addEventListener('click', () => {\n        if (this.el.showModal) {\n          this.el.showModal();\n        } else {\n          this.el.open = true;\n        }\n        el.querySelector('input')?.focus();\n      });\n    }\n    for (const close of this.el.querySelectorAll<HTMLButtonElement>('[data-modal-close]')) {\n      close.addEventListener('click', () => {\n        if (this.el.close) {\n          this.el.close();\n        } else {\n          this.el.open = false;\n        }\n      });\n    }\n  }\n}\n", "interface TagManagerEvent {\n  /**\n   * event is the name of the event, used to filter events in\n   * Google Analytics.\n   */\n  event: string;\n\n  /**\n   * event_category is a name that you supply as a way to group objects\n   * that to analyze. Typically, you will use the same category name\n   * multiple times over related UI elements (buttons, links, etc).\n   */\n  event_category?: string;\n\n  /**\n   * event_action is used to name the type of event or interaction you\n   * want to measure for a particular web object. For example, with a\n   * single \"form\" category, you can analyze a number of specific events\n   * with this parameter, such as: form entered, form submitted.\n   */\n  event_action?: string;\n\n  /**\n   * event_label provide additional information for events that you want\n   * to analyze, such as the text label of a link.\n   */\n  event_label?: string;\n\n  /**\n   * gtm.start is used to initialize Google Tag Manager.\n   */\n  'gtm.start'?: number;\n}\n\n// eslint-disable-next-line @typescript-eslint/no-unused-vars\ndeclare global {\n  interface Window {\n    dataLayer?: (TagManagerEvent | VoidFunction)[];\n    ga?: unknown;\n  }\n}\n\n/**\n * track sends events to Google Tag Manager.\n */\nexport function track(\n  event: string | TagManagerEvent,\n  category?: string,\n  action?: string,\n  label?: string\n): void {\n  window.dataLayer ??= [];\n  if (typeof event === 'string') {\n    window.dataLayer.push({\n      event,\n      event_category: category,\n      event_action: action,\n      event_label: label,\n    });\n  } else {\n    window.dataLayer.push(event);\n  }\n}\n\n/**\n * func adds functions to run sequentionally after\n * Google Tag Manager is ready.\n */\nexport function func(fn: () => void): void {\n  window.dataLayer ??= [];\n  window.dataLayer.push(fn);\n}\n", "/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { track } from '../analytics/analytics';\n\n/**\n * Options are keyhandler callback options.\n */\ninterface Options {\n  /**\n   * target is the element the key event should filter on. The\n   * default target is the document.\n   */\n  target?: Element;\n\n  /**\n   * withMeta specifies if the event callback should fire when\n   * the key is pressed with a meta key (ctrl, alt, etc). By\n   * default meta keypresses are ignored.\n   */\n  withMeta?: boolean;\n}\n\n/**\n * KeyHandler is the config for a keyboard event callback.\n */\ninterface KeyHandler extends Options {\n  description: string;\n  callback: (e: KeyboardEvent) => void;\n}\n\n/**\n * KeyboardController controls event callbacks for sitewide\n * keyboard events. Multiple callbacks can be registered for\n * a single key and by default the controller ignores events\n * for text input targets.\n */\nclass KeyboardController {\n  handlers: Record<string, Set<KeyHandler>>;\n\n  constructor() {\n    this.handlers = {};\n    document.addEventListener('keydown', e => this.handleKeyPress(e));\n  }\n\n  /**\n   * on registers keyboard event callbacks.\n   * @param key the key to register.\n   * @param description name of the event.\n   * @param callback event callback.\n   * @param options set target and withMeta options to override the default behaviors.\n   */\n  on(key: string, description: string, callback: (e: KeyboardEvent) => void, options?: Options) {\n    this.handlers[key] ??= new Set();\n    this.handlers[key].add({ description, callback, ...options });\n    return this;\n  }\n\n  private handleKeyPress(e: KeyboardEvent) {\n    for (const handler of this.handlers[e.key.toLowerCase()] ?? new Set()) {\n      if (handler.target && handler.target !== e.target) {\n        return;\n      }\n      const t = e.target as HTMLElement | null;\n      if (\n        !handler.target &&\n        (t?.tagName === 'INPUT' || t?.tagName === 'SELECT' || t?.tagName === 'TEXTAREA')\n      ) {\n        return;\n      }\n      if (t?.isContentEditable) {\n        return;\n      }\n      if (\n        (handler.withMeta && !(e.ctrlKey || e.metaKey)) ||\n        (!handler.withMeta && (e.ctrlKey || e.metaKey))\n      ) {\n        return;\n      }\n      track('keypress', 'hotkeys', `${e.key} pressed`, handler.description);\n      handler.callback(e);\n    }\n  }\n}\n\nexport const keyboard = new KeyboardController();\n", "/**\n * @license\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { registerHeaderListeners, registerSearchFormListeners } from 'static/shared/header/header';\nimport { CarouselController } from 'static/shared/carousel/carousel';\nimport { ClipboardController } from 'static/shared/clipboard/clipboard';\nimport { ToolTipController } from 'static/shared/tooltip/tooltip';\nimport { SelectNavController } from 'static/shared/outline/select';\nimport { ModalController } from 'static/shared/modal/modal';\n\nimport { keyboard } from 'static/shared/keyboard/keyboard';\nimport * as analytics from 'static/shared/analytics/analytics';\n\nregisterHeaderListeners();\nregisterSearchFormListeners();\n\nfor (const el of document.querySelectorAll<HTMLButtonElement>('.js-clipboard')) {\n  new ClipboardController(el);\n}\n\nfor (const el of document.querySelectorAll<HTMLDialogElement>('.js-modal')) {\n  new ModalController(el);\n}\n\nfor (const t of document.querySelectorAll<HTMLDetailsElement>('.js-tooltip')) {\n  new ToolTipController(t);\n}\n\nfor (const el of document.querySelectorAll<HTMLSelectElement>('.js-selectNav')) {\n  new SelectNavController(el);\n}\n\nfor (const el of document.querySelectorAll<HTMLSelectElement>('.js-carousel')) {\n  new CarouselController(el);\n}\n\n// Temporary shortcut for testing out the dark theme.\nkeyboard.on('t', 'toggle theme', () => {\n  toggleTheme();\n});\n\n// Pressing '/' focuses the search box\nkeyboard.on('/', 'focus search', e => {\n  const searchInput = Array.from(\n    document.querySelectorAll<HTMLInputElement>('.js-searchFocus')\n  ).pop();\n  // Favoring the Firefox quick find feature over search input\n  // focus. See: https://github.com/golang/go/issues/41093.\n  if (searchInput && !window.navigator.userAgent.includes('Firefox')) {\n    e.preventDefault();\n    searchInput.focus();\n  }\n});\n\n// Pressing 'y' changes the browser URL to the canonical URL\n// without triggering a reload.\nkeyboard.on('y', 'set canonical url', () => {\n  const canonicalURLPath = document.querySelector<HTMLDivElement>('.js-canonicalURLPath')?.dataset[\n    'canonicalUrlPath'\n  ];\n  if (canonicalURLPath && canonicalURLPath !== '') {\n    window.history.replaceState(null, '', canonicalURLPath);\n  }\n});\n\n/**\n * setupGoogleTagManager intializes Google Tag Manager.\n */\n(function setupGoogleTagManager() {\n  analytics.track({\n    'gtm.start': new Date().getTime(),\n    event: 'gtm.js',\n  });\n})();\n\n/**\n * removeUTMSource removes the utm_source GET parameter if present.\n * This is done using JavaScript, so that the utm_source is still\n * captured by Google Analytics.\n */\nfunction removeUTMSource() {\n  const urlParams = new URLSearchParams(window.location.search);\n  const utmSource = urlParams.get('utm_source');\n  if (utmSource !== 'gopls' && utmSource !== 'godoc' && utmSource !== 'pkggodev') {\n    return;\n  }\n\n  /** Strip the utm_source query parameter and replace the URL. **/\n  const newURL = new URL(window.location.href);\n  urlParams.delete('utm_source');\n  newURL.search = urlParams.toString();\n  window.history.replaceState(null, '', newURL.toString());\n}\n\nif (document.querySelector<HTMLElement>('.js-gtmID')?.dataset.gtmid && window.dataLayer) {\n  analytics.func(function () {\n    removeUTMSource();\n  });\n} else {\n  removeUTMSource();\n}\n\nfor (const el of document.querySelectorAll('.js-toggleTheme')) {\n  el.addEventListener('click', () => {\n    toggleTheme();\n  });\n}\n\n/**\n * toggleTheme switches the preferred color scheme between auto, light, and dark.\n */\nfunction toggleTheme() {\n  let nextTheme = 'dark';\n  const theme = document.documentElement.getAttribute('data-theme');\n  if (theme === 'dark') {\n    nextTheme = 'light';\n  } else if (theme === 'light') {\n    nextTheme = 'auto';\n  }\n  document.documentElement.setAttribute('data-theme', nextTheme);\n  document.cookie = `prefers-color-scheme=${nextTheme};path=/;max-age=31536000;`;\n}\n"],
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+  "sources": ["../../third_party/dialog-polyfill/dialog-polyfill.esm.js", "../shared/header/header.ts", "../shared/carousel/carousel.ts", "../shared/clipboard/clipboard.ts", "../shared/tooltip/tooltip.ts", "../shared/outline/select.ts", "../shared/modal/modal.ts", "../shared/analytics/analytics.ts", "../shared/keyboard/keyboard.ts", "../shared/jump/jump.ts", "frontend.ts"],
+  "sourcesContent": ["// nb. This is for IE10 and lower _only_.\nvar supportCustomEvent = window.CustomEvent;\nif (!supportCustomEvent || typeof supportCustomEvent === 'object') {\n  supportCustomEvent = function CustomEvent(event, x) {\n    x = x || {};\n    var ev = document.createEvent('CustomEvent');\n    ev.initCustomEvent(event, !!x.bubbles, !!x.cancelable, x.detail || null);\n    return ev;\n  };\n  supportCustomEvent.prototype = window.Event.prototype;\n}\n\n/**\n * @param {Element} el to check for stacking context\n * @return {boolean} whether this el or its parents creates a stacking context\n */\nfunction createsStackingContext(el) {\n  while (el && el !== document.body) {\n    var s = window.getComputedStyle(el);\n    var invalid = function(k, ok) {\n      return !(s[k] === undefined || s[k] === ok);\n    };\n\n    if (s.opacity < 1 ||\n        invalid('zIndex', 'auto') ||\n        invalid('transform', 'none') ||\n        invalid('mixBlendMode', 'normal') ||\n        invalid('filter', 'none') ||\n        invalid('perspective', 'none') ||\n        s['isolation'] === 'isolate' ||\n        s.position === 'fixed' ||\n        s.webkitOverflowScrolling === 'touch') {\n      return true;\n    }\n    el = el.parentElement;\n  }\n  return false;\n}\n\n/**\n * Finds the nearest <dialog> from the passed element.\n *\n * @param {Element} el to search from\n * @return {HTMLDialogElement} dialog found\n */\nfunction findNearestDialog(el) {\n  while (el) {\n    if (el.localName === 'dialog') {\n      return /** @type {HTMLDialogElement} */ (el);\n    }\n    el = el.parentElement;\n  }\n  return null;\n}\n\n/**\n * Blur the specified element, as long as it's not the HTML body element.\n * This works around an IE9/10 bug - blurring the body causes Windows to\n * blur the whole application.\n *\n * @param {Element} el to blur\n */\nfunction safeBlur(el) {\n  if (el && el.blur && el !== document.body) {\n    el.blur();\n  }\n}\n\n/**\n * @param {!NodeList} nodeList to search\n * @param {Node} node to find\n * @return {boolean} whether node is inside nodeList\n */\nfunction inNodeList(nodeList, node) {\n  for (var i = 0; i < nodeList.length; ++i) {\n    if (nodeList[i] === node) {\n      return true;\n    }\n  }\n  return false;\n}\n\n/**\n * @param {HTMLFormElement} el to check\n * @return {boolean} whether this form has method=\"dialog\"\n */\nfunction isFormMethodDialog(el) {\n  if (!el || !el.hasAttribute('method')) {\n    return false;\n  }\n  return el.getAttribute('method').toLowerCase() === 'dialog';\n}\n\n/**\n * @param {!HTMLDialogElement} dialog to upgrade\n * @constructor\n */\nfunction dialogPolyfillInfo(dialog) {\n  this.dialog_ = dialog;\n  this.replacedStyleTop_ = false;\n  this.openAsModal_ = false;\n\n  // Set a11y role. Browsers that support dialog implicitly know this already.\n  if (!dialog.hasAttribute('role')) {\n    dialog.setAttribute('role', 'dialog');\n  }\n\n  dialog.show = this.show.bind(this);\n  dialog.showModal = this.showModal.bind(this);\n  dialog.close = this.close.bind(this);\n\n  if (!('returnValue' in dialog)) {\n    dialog.returnValue = '';\n  }\n\n  if ('MutationObserver' in window) {\n    var mo = new MutationObserver(this.maybeHideModal.bind(this));\n    mo.observe(dialog, {attributes: true, attributeFilter: ['open']});\n  } else {\n    // IE10 and below support. Note that DOMNodeRemoved etc fire _before_ removal. They also\n    // seem to fire even if the element was removed as part of a parent removal. Use the removed\n    // events to force downgrade (useful if removed/immediately added).\n    var removed = false;\n    var cb = function() {\n      removed ? this.downgradeModal() : this.maybeHideModal();\n      removed = false;\n    }.bind(this);\n    var timeout;\n    var delayModel = function(ev) {\n      if (ev.target !== dialog) { return; }  // not for a child element\n      var cand = 'DOMNodeRemoved';\n      removed |= (ev.type.substr(0, cand.length) === cand);\n      window.clearTimeout(timeout);\n      timeout = window.setTimeout(cb, 0);\n    };\n    ['DOMAttrModified', 'DOMNodeRemoved', 'DOMNodeRemovedFromDocument'].forEach(function(name) {\n      dialog.addEventListener(name, delayModel);\n    });\n  }\n  // Note that the DOM is observed inside DialogManager while any dialog\n  // is being displayed as a modal, to catch modal removal from the DOM.\n\n  Object.defineProperty(dialog, 'open', {\n    set: this.setOpen.bind(this),\n    get: dialog.hasAttribute.bind(dialog, 'open')\n  });\n\n  this.backdrop_ = document.createElement('div');\n  this.backdrop_.className = 'backdrop';\n  this.backdrop_.addEventListener('click', this.backdropClick_.bind(this));\n}\n\ndialogPolyfillInfo.prototype = {\n\n  get dialog() {\n    return this.dialog_;\n  },\n\n  /**\n   * Maybe remove this dialog from the modal top layer. This is called when\n   * a modal dialog may no longer be tenable, e.g., when the dialog is no\n   * longer open or is no longer part of the DOM.\n   */\n  maybeHideModal: function() {\n    if (this.dialog_.hasAttribute('open') && document.body.contains(this.dialog_)) { return; }\n    this.downgradeModal();\n  },\n\n  /**\n   * Remove this dialog from the modal top layer, leaving it as a non-modal.\n   */\n  downgradeModal: function() {\n    if (!this.openAsModal_) { return; }\n    this.openAsModal_ = false;\n    this.dialog_.style.zIndex = '';\n\n    // This won't match the native <dialog> exactly because if the user set top on a centered\n    // polyfill dialog, that top gets thrown away when the dialog is closed. Not sure it's\n    // possible to polyfill this perfectly.\n    if (this.replacedStyleTop_) {\n      this.dialog_.style.top = '';\n      this.replacedStyleTop_ = false;\n    }\n\n    // Clear the backdrop and remove from the manager.\n    this.backdrop_.parentNode && this.backdrop_.parentNode.removeChild(this.backdrop_);\n    dialogPolyfill.dm.removeDialog(this);\n  },\n\n  /**\n   * @param {boolean} value whether to open or close this dialog\n   */\n  setOpen: function(value) {\n    if (value) {\n      this.dialog_.hasAttribute('open') || this.dialog_.setAttribute('open', '');\n    } else {\n      this.dialog_.removeAttribute('open');\n      this.maybeHideModal();  // nb. redundant with MutationObserver\n    }\n  },\n\n  /**\n   * Handles clicks on the fake .backdrop element, redirecting them as if\n   * they were on the dialog itself.\n   *\n   * @param {!Event} e to redirect\n   */\n  backdropClick_: function(e) {\n    if (!this.dialog_.hasAttribute('tabindex')) {\n      // Clicking on the backdrop should move the implicit cursor, even if dialog cannot be\n      // focused. Create a fake thing to focus on. If the backdrop was _before_ the dialog, this\n      // would not be needed - clicks would move the implicit cursor there.\n      var fake = document.createElement('div');\n      this.dialog_.insertBefore(fake, this.dialog_.firstChild);\n      fake.tabIndex = -1;\n      fake.focus();\n      this.dialog_.removeChild(fake);\n    } else {\n      this.dialog_.focus();\n    }\n\n    var redirectedEvent = document.createEvent('MouseEvents');\n    redirectedEvent.initMouseEvent(e.type, e.bubbles, e.cancelable, window,\n        e.detail, e.screenX, e.screenY, e.clientX, e.clientY, e.ctrlKey,\n        e.altKey, e.shiftKey, e.metaKey, e.button, e.relatedTarget);\n    this.dialog_.dispatchEvent(redirectedEvent);\n    e.stopPropagation();\n  },\n\n  /**\n   * Focuses on the first focusable element within the dialog. This will always blur the current\n   * focus, even if nothing within the dialog is found.\n   */\n  focus_: function() {\n    // Find element with `autofocus` attribute, or fall back to the first form/tabindex control.\n    var target = this.dialog_.querySelector('[autofocus]:not([disabled])');\n    if (!target && this.dialog_.tabIndex >= 0) {\n      target = this.dialog_;\n    }\n    if (!target) {\n      // Note that this is 'any focusable area'. This list is probably not exhaustive, but the\n      // alternative involves stepping through and trying to focus everything.\n      var opts = ['button', 'input', 'keygen', 'select', 'textarea'];\n      var query = opts.map(function(el) {\n        return el + ':not([disabled])';\n      });\n      // TODO(samthor): tabindex values that are not numeric are not focusable.\n      query.push('[tabindex]:not([disabled]):not([tabindex=\"\"])');  // tabindex != \"\", not disabled\n      target = this.dialog_.querySelector(query.join(', '));\n    }\n    safeBlur(document.activeElement);\n    target && target.focus();\n  },\n\n  /**\n   * Sets the zIndex for the backdrop and dialog.\n   *\n   * @param {number} dialogZ\n   * @param {number} backdropZ\n   */\n  updateZIndex: function(dialogZ, backdropZ) {\n    if (dialogZ < backdropZ) {\n      throw new Error('dialogZ should never be < backdropZ');\n    }\n    this.dialog_.style.zIndex = dialogZ;\n    this.backdrop_.style.zIndex = backdropZ;\n  },\n\n  /**\n   * Shows the dialog. If the dialog is already open, this does nothing.\n   */\n  show: function() {\n    if (!this.dialog_.open) {\n      this.setOpen(true);\n      this.focus_();\n    }\n  },\n\n  /**\n   * Show this dialog modally.\n   */\n  showModal: function() {\n    if (this.dialog_.hasAttribute('open')) {\n      throw new Error('Failed to execute \\'showModal\\' on dialog: The element is already open, and therefore cannot be opened modally.');\n    }\n    if (!document.body.contains(this.dialog_)) {\n      throw new Error('Failed to execute \\'showModal\\' on dialog: The element is not in a Document.');\n    }\n    if (!dialogPolyfill.dm.pushDialog(this)) {\n      throw new Error('Failed to execute \\'showModal\\' on dialog: There are too many open modal dialogs.');\n    }\n\n    if (createsStackingContext(this.dialog_.parentElement)) {\n      console.warn('A dialog is being shown inside a stacking context. ' +\n          'This may cause it to be unusable. For more information, see this link: ' +\n          'https://github.com/GoogleChrome/dialog-polyfill/#stacking-context');\n    }\n\n    this.setOpen(true);\n    this.openAsModal_ = true;\n\n    // Optionally center vertically, relative to the current viewport.\n    if (dialogPolyfill.needsCentering(this.dialog_)) {\n      dialogPolyfill.reposition(this.dialog_);\n      this.replacedStyleTop_ = true;\n    } else {\n      this.replacedStyleTop_ = false;\n    }\n\n    // Insert backdrop.\n    this.dialog_.parentNode.insertBefore(this.backdrop_, this.dialog_.nextSibling);\n\n    // Focus on whatever inside the dialog.\n    this.focus_();\n  },\n\n  /**\n   * Closes this HTMLDialogElement. This is optional vs clearing the open\n   * attribute, however this fires a 'close' event.\n   *\n   * @param {string=} opt_returnValue to use as the returnValue\n   */\n  close: function(opt_returnValue) {\n    if (!this.dialog_.hasAttribute('open')) {\n      throw new Error('Failed to execute \\'close\\' on dialog: The element does not have an \\'open\\' attribute, and therefore cannot be closed.');\n    }\n    this.setOpen(false);\n\n    // Leave returnValue untouched in case it was set directly on the element\n    if (opt_returnValue !== undefined) {\n      this.dialog_.returnValue = opt_returnValue;\n    }\n\n    // Triggering \"close\" event for any attached listeners on the <dialog>.\n    var closeEvent = new supportCustomEvent('close', {\n      bubbles: false,\n      cancelable: false\n    });\n    this.dialog_.dispatchEvent(closeEvent);\n  }\n\n};\n\nvar dialogPolyfill = {};\n\ndialogPolyfill.reposition = function(element) {\n  var scrollTop = document.body.scrollTop || document.documentElement.scrollTop;\n  var topValue = scrollTop + (window.innerHeight - element.offsetHeight) / 2;\n  element.style.top = Math.max(scrollTop, topValue) + 'px';\n};\n\ndialogPolyfill.isInlinePositionSetByStylesheet = function(element) {\n  for (var i = 0; i < document.styleSheets.length; ++i) {\n    var styleSheet = document.styleSheets[i];\n    var cssRules = null;\n    // Some browsers throw on cssRules.\n    try {\n      cssRules = styleSheet.cssRules;\n    } catch (e) {}\n    if (!cssRules) { continue; }\n    for (var j = 0; j < cssRules.length; ++j) {\n      var rule = cssRules[j];\n      var selectedNodes = null;\n      // Ignore errors on invalid selector texts.\n      try {\n        selectedNodes = document.querySelectorAll(rule.selectorText);\n      } catch(e) {}\n      if (!selectedNodes || !inNodeList(selectedNodes, element)) {\n        continue;\n      }\n      var cssTop = rule.style.getPropertyValue('top');\n      var cssBottom = rule.style.getPropertyValue('bottom');\n      if ((cssTop && cssTop !== 'auto') || (cssBottom && cssBottom !== 'auto')) {\n        return true;\n      }\n    }\n  }\n  return false;\n};\n\ndialogPolyfill.needsCentering = function(dialog) {\n  var computedStyle = window.getComputedStyle(dialog);\n  if (computedStyle.position !== 'absolute') {\n    return false;\n  }\n\n  // We must determine whether the top/bottom specified value is non-auto.  In\n  // WebKit/Blink, checking computedStyle.top == 'auto' is sufficient, but\n  // Firefox returns the used value. So we do this crazy thing instead: check\n  // the inline style and then go through CSS rules.\n  if ((dialog.style.top !== 'auto' && dialog.style.top !== '') ||\n      (dialog.style.bottom !== 'auto' && dialog.style.bottom !== '')) {\n    return false;\n  }\n  return !dialogPolyfill.isInlinePositionSetByStylesheet(dialog);\n};\n\n/**\n * @param {!Element} element to force upgrade\n */\ndialogPolyfill.forceRegisterDialog = function(element) {\n  if (window.HTMLDialogElement || element.showModal) {\n    console.warn('This browser already supports <dialog>, the polyfill ' +\n        'may not work correctly', element);\n  }\n  if (element.localName !== 'dialog') {\n    throw new Error('Failed to register dialog: The element is not a dialog.');\n  }\n  new dialogPolyfillInfo(/** @type {!HTMLDialogElement} */ (element));\n};\n\n/**\n * @param {!Element} element to upgrade, if necessary\n */\ndialogPolyfill.registerDialog = function(element) {\n  if (!element.showModal) {\n    dialogPolyfill.forceRegisterDialog(element);\n  }\n};\n\n/**\n * @constructor\n */\ndialogPolyfill.DialogManager = function() {\n  /** @type {!Array<!dialogPolyfillInfo>} */\n  this.pendingDialogStack = [];\n\n  var checkDOM = this.checkDOM_.bind(this);\n\n  // The overlay is used to simulate how a modal dialog blocks the document.\n  // The blocking dialog is positioned on top of the overlay, and the rest of\n  // the dialogs on the pending dialog stack are positioned below it. In the\n  // actual implementation, the modal dialog stacking is controlled by the\n  // top layer, where z-index has no effect.\n  this.overlay = document.createElement('div');\n  this.overlay.className = '_dialog_overlay';\n  this.overlay.addEventListener('click', function(e) {\n    this.forwardTab_ = undefined;\n    e.stopPropagation();\n    checkDOM([]);  // sanity-check DOM\n  }.bind(this));\n\n  this.handleKey_ = this.handleKey_.bind(this);\n  this.handleFocus_ = this.handleFocus_.bind(this);\n\n  this.zIndexLow_ = 100000;\n  this.zIndexHigh_ = 100000 + 150;\n\n  this.forwardTab_ = undefined;\n\n  if ('MutationObserver' in window) {\n    this.mo_ = new MutationObserver(function(records) {\n      var removed = [];\n      records.forEach(function(rec) {\n        for (var i = 0, c; c = rec.removedNodes[i]; ++i) {\n          if (!(c instanceof Element)) {\n            continue;\n          } else if (c.localName === 'dialog') {\n            removed.push(c);\n          }\n          removed = removed.concat(c.querySelectorAll('dialog'));\n        }\n      });\n      removed.length && checkDOM(removed);\n    });\n  }\n};\n\n/**\n * Called on the first modal dialog being shown. Adds the overlay and related\n * handlers.\n */\ndialogPolyfill.DialogManager.prototype.blockDocument = function() {\n  document.documentElement.addEventListener('focus', this.handleFocus_, true);\n  document.addEventListener('keydown', this.handleKey_);\n  this.mo_ && this.mo_.observe(document, {childList: true, subtree: true});\n};\n\n/**\n * Called on the first modal dialog being removed, i.e., when no more modal\n * dialogs are visible.\n */\ndialogPolyfill.DialogManager.prototype.unblockDocument = function() {\n  document.documentElement.removeEventListener('focus', this.handleFocus_, true);\n  document.removeEventListener('keydown', this.handleKey_);\n  this.mo_ && this.mo_.disconnect();\n};\n\n/**\n * Updates the stacking of all known dialogs.\n */\ndialogPolyfill.DialogManager.prototype.updateStacking = function() {\n  var zIndex = this.zIndexHigh_;\n\n  for (var i = 0, dpi; dpi = this.pendingDialogStack[i]; ++i) {\n    dpi.updateZIndex(--zIndex, --zIndex);\n    if (i === 0) {\n      this.overlay.style.zIndex = --zIndex;\n    }\n  }\n\n  // Make the overlay a sibling of the dialog itself.\n  var last = this.pendingDialogStack[0];\n  if (last) {\n    var p = last.dialog.parentNode || document.body;\n    p.appendChild(this.overlay);\n  } else if (this.overlay.parentNode) {\n    this.overlay.parentNode.removeChild(this.overlay);\n  }\n};\n\n/**\n * @param {Element} candidate to check if contained or is the top-most modal dialog\n * @return {boolean} whether candidate is contained in top dialog\n */\ndialogPolyfill.DialogManager.prototype.containedByTopDialog_ = function(candidate) {\n  while (candidate = findNearestDialog(candidate)) {\n    for (var i = 0, dpi; dpi = this.pendingDialogStack[i]; ++i) {\n      if (dpi.dialog === candidate) {\n        return i === 0;  // only valid if top-most\n      }\n    }\n    candidate = candidate.parentElement;\n  }\n  return false;\n};\n\ndialogPolyfill.DialogManager.prototype.handleFocus_ = function(event) {\n  if (this.containedByTopDialog_(event.target)) { return; }\n\n  if (document.activeElement === document.documentElement) { return; }\n\n  event.preventDefault();\n  event.stopPropagation();\n  safeBlur(/** @type {Element} */ (event.target));\n\n  if (this.forwardTab_ === undefined) { return; }  // move focus only from a tab key\n\n  var dpi = this.pendingDialogStack[0];\n  var dialog = dpi.dialog;\n  var position = dialog.compareDocumentPosition(event.target);\n  if (position & Node.DOCUMENT_POSITION_PRECEDING) {\n    if (this.forwardTab_) {\n      // forward\n      dpi.focus_();\n    } else if (event.target !== document.documentElement) {\n      // backwards if we're not already focused on <html>\n      document.documentElement.focus();\n    }\n  }\n\n  return false;\n};\n\ndialogPolyfill.DialogManager.prototype.handleKey_ = function(event) {\n  this.forwardTab_ = undefined;\n  if (event.keyCode === 27) {\n    event.preventDefault();\n    event.stopPropagation();\n    var cancelEvent = new supportCustomEvent('cancel', {\n      bubbles: false,\n      cancelable: true\n    });\n    var dpi = this.pendingDialogStack[0];\n    if (dpi && dpi.dialog.dispatchEvent(cancelEvent)) {\n      dpi.dialog.close();\n    }\n  } else if (event.keyCode === 9) {\n    this.forwardTab_ = !event.shiftKey;\n  }\n};\n\n/**\n * Finds and downgrades any known modal dialogs that are no longer displayed. Dialogs that are\n * removed and immediately readded don't stay modal, they become normal.\n *\n * @param {!Array<!HTMLDialogElement>} removed that have definitely been removed\n */\ndialogPolyfill.DialogManager.prototype.checkDOM_ = function(removed) {\n  // This operates on a clone because it may cause it to change. Each change also calls\n  // updateStacking, which only actually needs to happen once. But who removes many modal dialogs\n  // at a time?!\n  var clone = this.pendingDialogStack.slice();\n  clone.forEach(function(dpi) {\n    if (removed.indexOf(dpi.dialog) !== -1) {\n      dpi.downgradeModal();\n    } else {\n      dpi.maybeHideModal();\n    }\n  });\n};\n\n/**\n * @param {!dialogPolyfillInfo} dpi\n * @return {boolean} whether the dialog was allowed\n */\ndialogPolyfill.DialogManager.prototype.pushDialog = function(dpi) {\n  var allowed = (this.zIndexHigh_ - this.zIndexLow_) / 2 - 1;\n  if (this.pendingDialogStack.length >= allowed) {\n    return false;\n  }\n  if (this.pendingDialogStack.unshift(dpi) === 1) {\n    this.blockDocument();\n  }\n  this.updateStacking();\n  return true;\n};\n\n/**\n * @param {!dialogPolyfillInfo} dpi\n */\ndialogPolyfill.DialogManager.prototype.removeDialog = function(dpi) {\n  var index = this.pendingDialogStack.indexOf(dpi);\n  if (index === -1) { return; }\n\n  this.pendingDialogStack.splice(index, 1);\n  if (this.pendingDialogStack.length === 0) {\n    this.unblockDocument();\n  }\n  this.updateStacking();\n};\n\ndialogPolyfill.dm = new dialogPolyfill.DialogManager();\ndialogPolyfill.formSubmitter = null;\ndialogPolyfill.useValue = null;\n\n/**\n * Installs global handlers, such as click listers and native method overrides. These are needed\n * even if a no dialog is registered, as they deal with <form method=\"dialog\">.\n */\nif (window.HTMLDialogElement === undefined) {\n\n  /**\n   * If HTMLFormElement translates method=\"DIALOG\" into 'get', then replace the descriptor with\n   * one that returns the correct value.\n   */\n  var testForm = document.createElement('form');\n  testForm.setAttribute('method', 'dialog');\n  if (testForm.method !== 'dialog') {\n    var methodDescriptor = Object.getOwnPropertyDescriptor(HTMLFormElement.prototype, 'method');\n    if (methodDescriptor) {\n      // nb. Some older iOS and older PhantomJS fail to return the descriptor. Don't do anything\n      // and don't bother to update the element.\n      var realGet = methodDescriptor.get;\n      methodDescriptor.get = function() {\n        if (isFormMethodDialog(this)) {\n          return 'dialog';\n        }\n        return realGet.call(this);\n      };\n      var realSet = methodDescriptor.set;\n      methodDescriptor.set = function(v) {\n        if (typeof v === 'string' && v.toLowerCase() === 'dialog') {\n          return this.setAttribute('method', v);\n        }\n        return realSet.call(this, v);\n      };\n      Object.defineProperty(HTMLFormElement.prototype, 'method', methodDescriptor);\n    }\n  }\n\n  /**\n   * Global 'click' handler, to capture the <input type=\"submit\"> or <button> element which has\n   * submitted a <form method=\"dialog\">. Needed as Safari and others don't report this inside\n   * document.activeElement.\n   */\n  document.addEventListener('click', function(ev) {\n    dialogPolyfill.formSubmitter = null;\n    dialogPolyfill.useValue = null;\n    if (ev.defaultPrevented) { return; }  // e.g. a submit which prevents default submission\n\n    var target = /** @type {Element} */ (ev.target);\n    if (!target || !isFormMethodDialog(target.form)) { return; }\n\n    var valid = (target.type === 'submit' && ['button', 'input'].indexOf(target.localName) > -1);\n    if (!valid) {\n      if (!(target.localName === 'input' && target.type === 'image')) { return; }\n      // this is a <input type=\"image\">, which can submit forms\n      dialogPolyfill.useValue = ev.offsetX + ',' + ev.offsetY;\n    }\n\n    var dialog = findNearestDialog(target);\n    if (!dialog) { return; }\n\n    dialogPolyfill.formSubmitter = target;\n\n  }, false);\n\n  /**\n   * Replace the native HTMLFormElement.submit() method, as it won't fire the\n   * submit event and give us a chance to respond.\n   */\n  var nativeFormSubmit = HTMLFormElement.prototype.submit;\n  var replacementFormSubmit = function () {\n    if (!isFormMethodDialog(this)) {\n      return nativeFormSubmit.call(this);\n    }\n    var dialog = findNearestDialog(this);\n    dialog && dialog.close();\n  };\n  HTMLFormElement.prototype.submit = replacementFormSubmit;\n\n  /**\n   * Global form 'dialog' method handler. Closes a dialog correctly on submit\n   * and possibly sets its return value.\n   */\n  document.addEventListener('submit', function(ev) {\n    if (ev.defaultPrevented) { return; }  // e.g. a submit which prevents default submission\n\n    var form = /** @type {HTMLFormElement} */ (ev.target);\n    if (!isFormMethodDialog(form)) { return; }\n    ev.preventDefault();\n\n    var dialog = findNearestDialog(form);\n    if (!dialog) { return; }\n\n    // Forms can only be submitted via .submit() or a click (?), but anyway: sanity-check that\n    // the submitter is correct before using its value as .returnValue.\n    var s = dialogPolyfill.formSubmitter;\n    if (s && s.form === form) {\n      dialog.close(dialogPolyfill.useValue || s.value);\n    } else {\n      dialog.close();\n    }\n    dialogPolyfill.formSubmitter = null;\n\n  }, false);\n}\n\nexport default dialogPolyfill;\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nexport function registerHeaderListeners(): void {\n  const header = document.querySelector('.js-header');\n  const menuButtons = document.querySelectorAll('.js-headerMenuButton');\n  menuButtons.forEach(button => {\n    button.addEventListener('click', e => {\n      e.preventDefault();\n      header?.classList.toggle('is-active');\n      button.setAttribute('aria-expanded', String(header?.classList.contains('is-active')));\n    });\n  });\n\n  const scrim = document.querySelector('.js-scrim');\n  scrim?.addEventListener('click', e => {\n    e.preventDefault();\n    header?.classList.remove('is-active');\n    menuButtons.forEach(button => {\n      button.setAttribute('aria-expanded', String(header?.classList.contains('is-active')));\n    });\n  });\n}\n\nexport function registerSearchFormListeners(): void {\n  const searchForm = document.querySelector('.js-searchForm');\n  const expandSearch = document.querySelector('.js-expandSearch');\n  const input = searchForm?.querySelector('input');\n  const headerLogo = document.querySelector('.js-headerLogo');\n  const menuButton = document.querySelector('.js-headerMenuButton');\n  expandSearch?.addEventListener('click', () => {\n    searchForm?.classList.add('go-SearchForm--expanded');\n    headerLogo?.classList.add('go-Header-logo--hidden');\n    menuButton?.classList.add('go-Header-navOpen--hidden');\n    input?.focus();\n  });\n  document?.addEventListener('click', e => {\n    if (!searchForm?.contains(e.target as Node)) {\n      searchForm?.classList.remove('go-SearchForm--expanded');\n      headerLogo?.classList.remove('go-Header-logo--hidden');\n      menuButton?.classList.remove('go-Header-navOpen--hidden');\n    }\n  });\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * Carousel Controller adds event listeners, accessibilty enhancements, and\n * control elements to a carousel component.\n */\nexport class CarouselController {\n  /**\n   * slides is a collection of slides in the carousel.\n   */\n  private slides: HTMLLIElement[];\n  /**\n   * dots is a collection of dot navigation controls, added to the carousel\n   * by this controller.\n   */\n  private dots: HTMLElement[];\n  /**\n   * liveRegion is a visually hidden element that notifies assitive devices\n   * of visual changes to the carousel. They are added to the carousel by\n   * this controller.\n   */\n  private liveRegion: HTMLElement;\n  /**\n   * activeIndex is the 0-index of the currently active slide.\n   */\n  private activeIndex: number;\n\n  constructor(private el: HTMLElement) {\n    this.slides = Array.from(el.querySelectorAll('.go-Carousel-slide'));\n    this.dots = [];\n    this.liveRegion = document.createElement('div');\n    this.activeIndex = Number(el.getAttribute('data-slide-index') ?? 0);\n\n    this.initSlides();\n    this.initArrows();\n    this.initDots();\n    this.initLiveRegion();\n  }\n\n  private initSlides() {\n    for (const [i, v] of this.slides.entries()) {\n      if (i === this.activeIndex) continue;\n      v.setAttribute('aria-hidden', 'true');\n    }\n  }\n\n  private initArrows() {\n    const arrows = document.createElement('ul');\n    arrows.classList.add('go-Carousel-arrows');\n    arrows.innerHTML = `\n      <li>\n        <button class=\"go-Carousel-prevSlide\" aria-label=\"Go to previous slide\">\n          <img class=\"go-Icon\" height=\"24\" width=\"24\" src=\"/static/shared/icon/arrow_left_gm_grey_24dp.svg\" alt=\"\">\n        </button>\n      </li>\n      <li>\n        <button class=\"go-Carousel-nextSlide\" aria-label=\"Go to next slide\">\n          <img class=\"go-Icon\" height=\"24\" width=\"24\" src=\"/static/shared/icon/arrow_right_gm_grey_24dp.svg\" alt=\"\">\n        </button>\n      </li>\n    `;\n    arrows\n      .querySelector('.go-Carousel-prevSlide')\n      ?.addEventListener('click', () => this.setActive(this.activeIndex - 1));\n    arrows\n      .querySelector('.go-Carousel-nextSlide')\n      ?.addEventListener('click', () => this.setActive(this.activeIndex + 1));\n    this.el.append(arrows);\n  }\n\n  private initDots() {\n    const dots = document.createElement('ul');\n    dots.classList.add('go-Carousel-dots');\n    for (let i = 0; i < this.slides.length; i++) {\n      const li = document.createElement('li');\n      const button = document.createElement('button');\n      button.classList.add('go-Carousel-dot');\n      if (i === this.activeIndex) {\n        button.classList.add('go-Carousel-dot--active');\n      }\n      button.innerHTML = `<span class=\"go-Carousel-obscured\">Slide ${i + 1}</span>`;\n      button.addEventListener('click', () => this.setActive(i));\n      li.append(button);\n      dots.append(li);\n      this.dots.push(button);\n    }\n    this.el.append(dots);\n  }\n\n  private initLiveRegion() {\n    this.liveRegion.setAttribute('aria-live', 'polite');\n    this.liveRegion.setAttribute('aria-atomic', 'true');\n    this.liveRegion.setAttribute('class', 'go-Carousel-obscured');\n    this.liveRegion.textContent = `Slide ${this.activeIndex + 1} of ${this.slides.length}`;\n    this.el.appendChild(this.liveRegion);\n  }\n\n  private setActive = (index: number) => {\n    this.activeIndex = (index + this.slides.length) % this.slides.length;\n    this.el.setAttribute('data-slide-index', String(this.activeIndex));\n    for (const d of this.dots) {\n      d.classList.remove('go-Carousel-dot--active');\n    }\n    this.dots[this.activeIndex].classList.add('go-Carousel-dot--active');\n    for (const s of this.slides) {\n      s.setAttribute('aria-hidden', 'true');\n    }\n    this.slides[this.activeIndex].removeAttribute('aria-hidden');\n    this.liveRegion.textContent = 'Slide ' + (this.activeIndex + 1) + ' of ' + this.slides.length;\n  };\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * This class decorates an element to copy arbitrary data attached via a data-\n * attribute to the clipboard.\n */\nexport class ClipboardController {\n  /**\n   * The data to be copied to the clipboard.\n   */\n  private data: string;\n\n  /**\n   * @param el The element that will trigger copying text to the clipboard. The text is\n   * expected to be within its data-to-copy attribute.\n   */\n  constructor(private el: HTMLButtonElement) {\n    this.data = el.dataset['toCopy'] ?? el.innerText;\n    // if data-to-copy is empty and the button is part of an input group\n    // capture the value of the input.\n    if (!this.data && el.parentElement?.classList.contains('go-InputGroup')) {\n      this.data = (this.data || el.parentElement?.querySelector('input')?.value) ?? '';\n    }\n    el.addEventListener('click', e => this.handleCopyClick(e));\n  }\n\n  /**\n   * Handles when the primary element is clicked.\n   */\n  handleCopyClick(e: MouseEvent): void {\n    e.preventDefault();\n    const TOOLTIP_SHOW_DURATION_MS = 1000;\n\n    // This API is not available on iOS.\n    if (!navigator.clipboard) {\n      this.showTooltipText('Unable to copy', TOOLTIP_SHOW_DURATION_MS);\n      return;\n    }\n    navigator.clipboard\n      .writeText(this.data)\n      .then(() => {\n        this.showTooltipText('Copied!', TOOLTIP_SHOW_DURATION_MS);\n      })\n      .catch(() => {\n        this.showTooltipText('Unable to copy', TOOLTIP_SHOW_DURATION_MS);\n      });\n  }\n\n  /**\n   * Shows the given text in a tooltip for a specified amount of time, in milliseconds.\n   */\n  showTooltipText(text: string, durationMs: number): void {\n    this.el.setAttribute('data-tooltip', text);\n    setTimeout(() => this.el.setAttribute('data-tooltip', ''), durationMs);\n  }\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * ToolTipController handles closing tooltips on external clicks.\n */\nexport class ToolTipController {\n  constructor(private el: HTMLDetailsElement) {\n    document.addEventListener('click', e => {\n      const insideTooltip = this.el.contains(e.target as Element);\n      if (!insideTooltip) {\n        this.el.removeAttribute('open');\n      }\n    });\n  }\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { TreeNavController } from './tree.js';\n\nexport class SelectNavController {\n  constructor(private el: Element) {\n    this.el.addEventListener('change', e => {\n      const target = e.target as HTMLSelectElement;\n      let href = target.value;\n      if (!target.value.startsWith('/')) {\n        href = '/' + href;\n      }\n      window.location.href = href;\n    });\n  }\n}\n\nexport function makeSelectNav(tree: TreeNavController): HTMLLabelElement {\n  const label = document.createElement('label');\n  label.classList.add('go-Label');\n  label.setAttribute('aria-label', 'Menu');\n  const select = document.createElement('select');\n  select.classList.add('go-Select', 'js-selectNav');\n  label.appendChild(select);\n  const outline = document.createElement('optgroup');\n  outline.label = 'Outline';\n  select.appendChild(outline);\n  const groupMap: Record<string, HTMLOptGroupElement> = {};\n  let group: HTMLOptGroupElement;\n  for (const t of tree.treeitems) {\n    if (Number(t.depth) > 4) continue;\n    if (t.groupTreeitem) {\n      group = groupMap[t.groupTreeitem.label];\n      if (!group) {\n        group = groupMap[t.groupTreeitem.label] = document.createElement('optgroup');\n        group.label = t.groupTreeitem.label;\n        select.appendChild(group);\n      }\n    } else {\n      group = outline;\n    }\n    const o = document.createElement('option');\n    o.label = t.label;\n    o.textContent = t.label;\n    o.value = (t.el as HTMLAnchorElement).href.replace(window.location.origin, '').replace('/', '');\n    group.appendChild(o);\n  }\n  tree.addObserver(t => {\n    const hash = (t.el as HTMLAnchorElement).hash;\n    const value = select.querySelector<HTMLOptionElement>(`[value$=\"${hash}\"]`)?.value;\n    if (value) {\n      select.value = value;\n    }\n  }, 50);\n  return label;\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * ModalController registers a dialog element with the polyfill if\n * necessary for the current browser, add adds event listeners to\n * close and open modals.\n */\nexport class ModalController {\n  constructor(private el: HTMLDialogElement) {\n    // Only load the dialog polyfill if necessary for the environment.\n    if (!window.HTMLDialogElement && !el.showModal) {\n      import('../../../third_party/dialog-polyfill/dialog-polyfill.esm.js').then(\n        ({ default: polyfill }) => {\n          polyfill.registerDialog(el);\n        }\n      );\n    }\n    const id = el.id;\n    const button = document.querySelector<HTMLButtonElement>(`[aria-controls=\"${id}\"]`);\n    if (button) {\n      button.addEventListener('click', () => {\n        if (this.el.showModal) {\n          this.el.showModal();\n        } else {\n          this.el.open = true;\n        }\n        el.querySelector('input')?.focus();\n      });\n    }\n    for (const close of this.el.querySelectorAll<HTMLButtonElement>('[data-modal-close]')) {\n      close.addEventListener('click', () => {\n        if (this.el.close) {\n          this.el.close();\n        } else {\n          this.el.open = false;\n        }\n      });\n    }\n  }\n}\n", "interface TagManagerEvent {\n  /**\n   * event is the name of the event, used to filter events in\n   * Google Analytics.\n   */\n  event: string;\n\n  /**\n   * event_category is a name that you supply as a way to group objects\n   * that to analyze. Typically, you will use the same category name\n   * multiple times over related UI elements (buttons, links, etc).\n   */\n  event_category?: string;\n\n  /**\n   * event_action is used to name the type of event or interaction you\n   * want to measure for a particular web object. For example, with a\n   * single \"form\" category, you can analyze a number of specific events\n   * with this parameter, such as: form entered, form submitted.\n   */\n  event_action?: string;\n\n  /**\n   * event_label provide additional information for events that you want\n   * to analyze, such as the text label of a link.\n   */\n  event_label?: string;\n\n  /**\n   * gtm.start is used to initialize Google Tag Manager.\n   */\n  'gtm.start'?: number;\n}\n\n// eslint-disable-next-line @typescript-eslint/no-unused-vars\ndeclare global {\n  interface Window {\n    dataLayer?: (TagManagerEvent | VoidFunction)[];\n    ga?: unknown;\n  }\n}\n\n/**\n * track sends events to Google Tag Manager.\n */\nexport function track(\n  event: string | TagManagerEvent,\n  category?: string,\n  action?: string,\n  label?: string\n): void {\n  window.dataLayer ??= [];\n  if (typeof event === 'string') {\n    window.dataLayer.push({\n      event,\n      event_category: category,\n      event_action: action,\n      event_label: label,\n    });\n  } else {\n    window.dataLayer.push(event);\n  }\n}\n\n/**\n * func adds functions to run sequentionally after\n * Google Tag Manager is ready.\n */\nexport function func(fn: () => void): void {\n  window.dataLayer ??= [];\n  window.dataLayer.push(fn);\n}\n", "/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { track } from '../analytics/analytics';\n\n/**\n * Options are keyhandler callback options.\n */\ninterface Options {\n  /**\n   * target is the element the key event should filter on. The\n   * default target is the document.\n   */\n  target?: Element;\n\n  /**\n   * withMeta specifies if the event callback should fire when\n   * the key is pressed with a meta key (ctrl, alt, etc). By\n   * default meta keypresses are ignored.\n   */\n  withMeta?: boolean;\n}\n\n/**\n * KeyHandler is the config for a keyboard event callback.\n */\ninterface KeyHandler extends Options {\n  description: string;\n  callback: (e: KeyboardEvent) => void;\n}\n\n/**\n * KeyboardController controls event callbacks for sitewide\n * keyboard events. Multiple callbacks can be registered for\n * a single key and by default the controller ignores events\n * for text input targets.\n */\nclass KeyboardController {\n  handlers: Record<string, Set<KeyHandler>>;\n\n  constructor() {\n    this.handlers = {};\n    document.addEventListener('keydown', e => this.handleKeyPress(e));\n  }\n\n  /**\n   * on registers keyboard event callbacks.\n   * @param key the key to register.\n   * @param description name of the event.\n   * @param callback event callback.\n   * @param options set target and withMeta options to override the default behaviors.\n   */\n  on(key: string, description: string, callback: (e: KeyboardEvent) => void, options?: Options) {\n    this.handlers[key] ??= new Set();\n    this.handlers[key].add({ description, callback, ...options });\n    return this;\n  }\n\n  private handleKeyPress(e: KeyboardEvent) {\n    for (const handler of this.handlers[e.key.toLowerCase()] ?? new Set()) {\n      if (handler.target && handler.target !== e.target) {\n        return;\n      }\n      const t = e.target as HTMLElement | null;\n      if (\n        !handler.target &&\n        (t?.tagName === 'INPUT' || t?.tagName === 'SELECT' || t?.tagName === 'TEXTAREA')\n      ) {\n        return;\n      }\n      if (t?.isContentEditable) {\n        return;\n      }\n      if (\n        (handler.withMeta && !(e.ctrlKey || e.metaKey)) ||\n        (!handler.withMeta && (e.ctrlKey || e.metaKey))\n      ) {\n        return;\n      }\n      track('keypress', 'hotkeys', `${e.key} pressed`, handler.description);\n      handler.callback(e);\n    }\n  }\n}\n\nexport const keyboard = new KeyboardController();\n", "/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n// This file implements the behavior of the \"jump to symbol\" dialog for Go\n// package documentation, as well as the simple dialog that displays keyboard\n// shortcuts.\n\n// The DOM for the dialogs is at the bottom of static/frontend/unit/main/_modals.tmpl.\n// The CSS is in static/frontend/unit/main/_modals.css.\n\n// The dialog is activated by pressing the 'f' key. It presents a list\n// (#JumpDialog-list) of all Go symbols displayed in the documentation.\n// Entering text in the dialog's text box (#JumpDialog-filter) restricts the\n// list to symbols containing the text. Clicking on an symbol jumps to\n// its documentation.\n\n// This code is based on\n// https://go.googlesource.com/gddo/+/refs/heads/master/gddo-server/assets/site.js.\n// It was modified to remove the dependence on jquery and bootstrap.\n\nimport { keyboard } from '../keyboard/keyboard';\n\nconst jumpDialog = document.querySelector<HTMLDialogElement>('.JumpDialog');\nconst jumpBody = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-body');\nconst jumpList = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-list');\nconst jumpFilter = jumpDialog?.querySelector<HTMLInputElement>('.JumpDialog-input');\nconst doc = document.querySelector<HTMLDivElement>('.js-documentation');\n\ninterface JumpListItem {\n  link: HTMLAnchorElement;\n  name: string;\n  kind: string;\n  lower: string;\n}\n\nlet jumpListItems: JumpListItem[] | undefined; // All the symbols in the doc; computed only once.\n\n// collectJumpListItems returns a list of items, one for each symbol in the\n// documentation on the current page.\n//\n// It uses the data-kind attribute generated in the documentation HTML to find\n// the symbols and their id attributes.\n//\n// If there are no data-kind attributes, then we have older doc; fall back to\n// a less precise method.\nfunction collectJumpListItems() {\n  const items = [];\n  if (!doc) return;\n  for (const el of doc.querySelectorAll('[data-kind]')) {\n    items.push(newJumpListItem(el));\n  }\n\n  // Clicking on any of the links closes the dialog.\n  for (const item of items) {\n    item.link.addEventListener('click', function () {\n      jumpDialog?.close();\n    });\n  }\n  // Sort case-insensitively by symbol name.\n  items.sort(function (a, b) {\n    return a.lower.localeCompare(b.lower);\n  });\n  return items;\n}\n\n// newJumpListItem creates a new item for the DOM element el.\n// An item is an object with:\n// - name: the element's id (which is the symbol name)\n// - kind: the element's kind (function, variable, etc.),\n// - link: a link ('a' tag) to the element\n// - lower: the name in lower case, just for sorting\nfunction newJumpListItem(el: Element): JumpListItem {\n  const a = document.createElement('a');\n  const name = el.getAttribute('id');\n  a.setAttribute('href', '#' + name);\n  a.setAttribute('tabindex', '-1');\n  a.setAttribute('data-gtmc', 'jump to link');\n  const kind = el.getAttribute('data-kind');\n  return {\n    link: a,\n    name: name ?? '',\n    kind: kind ?? '',\n    lower: name?.toLowerCase() ?? '', // for sorting\n  };\n}\n\nlet lastFilterValue: string; // The last contents of the filter text box.\nlet activeJumpItem = -1; // The index of the currently active item in the list.\n\n// updateJumpList sets the elements of the dialog list to\n// everything whose name contains filter.\nfunction updateJumpList(filter: string) {\n  lastFilterValue = filter;\n  if (!jumpListItems) {\n    jumpListItems = collectJumpListItems();\n  }\n  setActiveJumpItem(-1);\n\n  // Remove all children from list.\n  while (jumpList?.firstChild) {\n    jumpList.firstChild.remove();\n  }\n\n  if (filter) {\n    // A filter is set. We treat the filter as a substring that can appear in\n    // an item name (case insensitive), and find the following matches - in\n    // order of priority:\n    //\n    // 1. Exact matches (the filter matches the item's name exactly)\n    // 2. Prefix matches (the item's name starts with filter)\n    // 3. Infix matches (the filter is a substring of the item's name)\n    const filterLowerCase = filter.toLowerCase();\n\n    const exactMatches = [];\n    const prefixMatches = [];\n    const infixMatches = [];\n\n    // makeLinkHtml creates the link name HTML for a list item. item is the DOM\n    // item. item.name.substr(boldStart, boldEnd) will be bolded.\n    const makeLinkHtml = (item: JumpListItem, boldStart: number, boldEnd: number) => {\n      return (\n        item.name.substring(0, boldStart) +\n        '<b>' +\n        item.name.substring(boldStart, boldEnd) +\n        '</b>' +\n        item.name.substring(boldEnd)\n      );\n    };\n\n    for (const item of jumpListItems ?? []) {\n      const nameLowerCase = item.name.toLowerCase();\n\n      if (nameLowerCase === filterLowerCase) {\n        item.link.innerHTML = makeLinkHtml(item, 0, item.name.length);\n        exactMatches.push(item);\n      } else if (nameLowerCase.startsWith(filterLowerCase)) {\n        item.link.innerHTML = makeLinkHtml(item, 0, filter.length);\n        prefixMatches.push(item);\n      } else {\n        const index = nameLowerCase.indexOf(filterLowerCase);\n        if (index > -1) {\n          item.link.innerHTML = makeLinkHtml(item, index, index + filter.length);\n          infixMatches.push(item);\n        }\n      }\n    }\n\n    for (const item of exactMatches.concat(prefixMatches).concat(infixMatches)) {\n      jumpList?.appendChild(item.link);\n    }\n  } else {\n    if (!jumpListItems || jumpListItems.length === 0) {\n      const msg = document.createElement('i');\n      msg.innerHTML = 'There are no symbols on this page.';\n      jumpList?.appendChild(msg);\n    }\n    // No filter set; display all items in their existing order.\n    for (const item of jumpListItems ?? []) {\n      item.link.innerHTML = item.name + ' <i>' + item.kind + '</i>';\n      jumpList?.appendChild(item.link);\n    }\n  }\n\n  if (jumpBody) {\n    jumpBody.scrollTop = 0;\n  }\n  if (jumpListItems?.length && jumpList && jumpList.children.length > 0) {\n    setActiveJumpItem(0);\n  }\n}\n\n// Set the active jump item to n.\nfunction setActiveJumpItem(n: number) {\n  const cs = jumpList?.children as HTMLCollectionOf<HTMLElement> | null | undefined;\n  if (!cs || !jumpBody) {\n    return;\n  }\n  if (activeJumpItem >= 0) {\n    cs[activeJumpItem].classList.remove('JumpDialog-active');\n  }\n  if (n >= cs.length) {\n    n = cs.length - 1;\n  }\n  if (n >= 0) {\n    cs[n].classList.add('JumpDialog-active');\n\n    // Scroll so the active item is visible.\n    // For some reason cs[n].scrollIntoView() doesn't behave as I'd expect:\n    // it moves the entire dialog box in the viewport.\n\n    // Get the top and bottom of the active item relative to jumpBody.\n    const activeTop = cs[n].offsetTop - cs[0].offsetTop;\n    const activeBottom = activeTop + cs[n].clientHeight;\n    if (activeTop < jumpBody.scrollTop) {\n      // Off the top; scroll up.\n      jumpBody.scrollTop = activeTop;\n    } else if (activeBottom > jumpBody.scrollTop + jumpBody.clientHeight) {\n      // Off the bottom; scroll down.\n      jumpBody.scrollTop = activeBottom - jumpBody.clientHeight;\n    }\n  }\n  activeJumpItem = n;\n}\n\n// Increment the activeJumpItem by delta.\nfunction incActiveJumpItem(delta: number) {\n  if (activeJumpItem < 0) {\n    return;\n  }\n  let n = activeJumpItem + delta;\n  if (n < 0) {\n    n = 0;\n  }\n  setActiveJumpItem(n);\n}\n\nexport function initModals(): void {\n  // Pressing a key in the filter updates the list (if the filter actually changed).\n  jumpFilter?.addEventListener('keyup', function () {\n    if (jumpFilter.value.toUpperCase() != lastFilterValue.toUpperCase()) {\n      updateJumpList(jumpFilter.value);\n    }\n  });\n\n  // Pressing enter in the filter selects the first element in the list.\n  jumpFilter?.addEventListener('keydown', function (event) {\n    const upArrow = 38;\n    const downArrow = 40;\n    const enterKey = 13;\n    switch (event.which) {\n      case upArrow:\n        incActiveJumpItem(-1);\n        event.preventDefault();\n        break;\n      case downArrow:\n        incActiveJumpItem(1);\n        event.preventDefault();\n        break;\n      case enterKey:\n        if (activeJumpItem >= 0) {\n          if (jumpList) {\n            (jumpList.children[activeJumpItem] as HTMLElement).click();\n            event.preventDefault();\n          }\n        }\n        break;\n    }\n  });\n\n  const shortcutsDialog = document.querySelector<HTMLDialogElement>('.ShortcutsDialog');\n\n  // - Pressing 'f' or 'F' opens the jump-to-symbol dialog.\n  // - Pressing '?' opens up the shortcut dialog.\n  // Ignore a keypress if a dialog is already open, or if it is pressed on a\n  // component that wants to consume it.\n  keyboard\n    .on('f', 'open jump to modal', e => {\n      if (jumpDialog?.open || shortcutsDialog?.open) {\n        return;\n      }\n      e.preventDefault();\n      if (jumpFilter) {\n        jumpFilter.value = '';\n      }\n      jumpDialog?.showModal();\n      jumpFilter?.focus();\n      updateJumpList('');\n    })\n    .on('?', 'open shortcuts modal', () => {\n      if (jumpDialog?.open || shortcutsDialog?.open) {\n        return;\n      }\n      shortcutsDialog?.showModal();\n    });\n\n  const jumpOutlineInput = document.querySelector('.js-jumpToInput');\n  if (jumpOutlineInput) {\n    jumpOutlineInput.addEventListener('click', () => {\n      if (jumpFilter) {\n        jumpFilter.value = '';\n      }\n      updateJumpList('');\n    });\n  }\n\n  document.querySelector('.js-openShortcuts')?.addEventListener('click', () => {\n    shortcutsDialog?.showModal();\n  });\n}\n", "/**\n * @license\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { registerHeaderListeners, registerSearchFormListeners } from 'static/shared/header/header';\nimport { CarouselController } from 'static/shared/carousel/carousel';\nimport { ClipboardController } from 'static/shared/clipboard/clipboard';\nimport { ToolTipController } from 'static/shared/tooltip/tooltip';\nimport { SelectNavController } from 'static/shared/outline/select';\nimport { ModalController } from 'static/shared/modal/modal';\nimport { initModals } from 'static/shared/jump/jump';\n\nimport { keyboard } from 'static/shared/keyboard/keyboard';\nimport * as analytics from 'static/shared/analytics/analytics';\n\nfor (const el of document.querySelectorAll<HTMLButtonElement>('.js-clipboard')) {\n  new ClipboardController(el);\n}\n\nfor (const el of document.querySelectorAll<HTMLDialogElement>('.js-modal')) {\n  new ModalController(el);\n}\n\nfor (const t of document.querySelectorAll<HTMLDetailsElement>('.js-tooltip')) {\n  new ToolTipController(t);\n}\n\nfor (const el of document.querySelectorAll<HTMLSelectElement>('.js-selectNav')) {\n  new SelectNavController(el);\n}\n\nfor (const el of document.querySelectorAll<HTMLSelectElement>('.js-carousel')) {\n  new CarouselController(el);\n}\n\nregisterHeaderListeners();\nregisterSearchFormListeners();\ninitModals();\n\n// Temporary shortcut for testing out the dark theme.\nkeyboard.on('t', 'toggle theme', () => {\n  toggleTheme();\n});\n\n// Pressing '/' focuses the search box\nkeyboard.on('/', 'focus search', e => {\n  const searchInput = Array.from(\n    document.querySelectorAll<HTMLInputElement>('.js-searchFocus')\n  ).pop();\n  // Favoring the Firefox quick find feature over search input\n  // focus. 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   "names": []
 }
diff --git a/static/frontend/frontend.min.css b/static/frontend/frontend.min.css
index dc7febb..cd752d0 100644
--- a/static/frontend/frontend.min.css
+++ b/static/frontend/frontend.min.css
@@ -3,5 +3,5 @@
  * Use of this source code is governed by a BSD-style
  * license that can be found in the LICENSE file.
  */
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.3rem;position:absolute;text-transform:uppercase;top:.125rem;white-space:nowrap;z-index:1000}.go-Clipboard:after{border-bottom:.25rem solid transparent;border-left:0;border-right:.25rem solid var(--color-background-inverted);border-top:.25rem solid transparent;content:"";display:block;position:absolute;right:-.125rem;top:.5625rem;z-index:1000}.go-Clipboard:not([data-tooltip]):before,.go-Clipboard:not([data-tooltip]):after,.go-Clipboard[data-tooltip=""]:before,.go-Clipboard[data-tooltip=""]:after{display:none}:root{--gray-1: #202224;--gray-2: #3e4042;--gray-3: #555759;--gray-4: #6e7072;--gray-5: #848688;--gray-6: #aaacae;--gray-7: #c6c8ca;--gray-8: #dcdee0;--gray-9: #f0f1f2;--gray-10: #f8f8f8;--turq-light: #5dc9e2;--turq-med: #50b7e0;--turq-dark: #007d9c;--blue: #bfeaf4;--blue-light: #f2fafd;--black: #000;--green: #3a6e11;--green-light: #5fda64;--pink: #ce3262;--pink-light: #fdecf1;--purple: #542c7d;--slate: #253443;--white: #fff;--yellow: #fddd00;--yellow-light: #fff8cc;--color-brand-primary: var(--turq-dark);--color-background: var(--white);--color-background-inverted: var(--slate);--color-background-accented: var(--gray-10);--color-background-highlighted: var(--blue);--color-background-highlighted-link: var(--blue-light);--color-background-info: var(--gray-9);--color-background-warning: var(--yellow-light);--color-background-alert: var(--pink-light);--color-border: var(--gray-7);--color-text: var(--gray-1);--color-text-subtle: var(--gray-4);--color-text-inverted: var(--white);--color-code-comment: var(--green);--color-input: var(--color-background);--color-input-text: var(--color-text);--color-button: var(--turq-dark);--color-button-disabled: var(--gray-9);--color-button-text: var(--white);--color-button-text-disabled: var(--gray-3);--color-button-inverted: var(--color-background);--color-button-inverted-disabled: var(--color-background);--color-button-inverted-text: var(--color-brand-primary);--color-button-inverted-text-disabled: var(--color-text-subtle);--color-button-accented: var(--yellow);--color-button-accented-disabled: var(--gray-9);--color-button-accented-text: var(--gray-1);--color-button-accented-text-disabled: var(--gray-3)}[data-theme=dark]{--color-brand-primary: var(--turq-med);--color-background: var(--gray-1);--color-background-accented: var(--gray-2);--color-background-highlighted: var(--gray-2);--color-background-highlighted-link: var(--gray-2);--color-background-info: var(--gray-3);--color-background-warning: var(--yellow);--color-background-alert: var(--pink);--color-border: var(--gray-4);--color-text: var(--gray-9);--color-text-subtle: var(--gray-7);--color-code-comment: var(--green-light)}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--color-brand-primary: var(--turq-med);--color-background: var(--gray-1);--color-background-accented: var(--gray-2);--color-background-highlighted: var(--gray-2);--color-background-highlighted-link: var(--gray-2);--color-background-info: var(--gray-3);--color-background-warning: var(--yellow);--color-background-alert: var(--pink);--color-border: var(--gray-4);--color-text: var(--gray-9);--color-text-subtle: var(--gray-7);--color-code-comment: var(--green-light)}}.go-Footer{background-color:var(--color-background-inverted);color:var(--color-text-inverted);font-size:.875rem;width:100%}.go-Footer-links{display:flex;flex-wrap:wrap;justify-content:space-between;margin:auto;max-width:75.75rem;padding:2rem 1.5rem 2.625rem}.go-Footer-linkColumn{flex:0 0 9.5rem}.go-Footer .go-Footer-link{color:var(--color-text-inverted);display:flex;flex:1;font-size:.875rem;line-height:2rem}.go-Footer .go-Footer-link--primary{font-size:1.125rem;line-height:1.75rem;margin-bottom:.5rem;margin-top:.75rem}.go-Footer-bottom{align-items:center;border-top:var(--border);display:flex;margin:0 1.5rem;min-height:4.125rem}.go-Footer-gopher{align-self:flex-end;height:3.147rem;width:5rem}.go-Footer-listRow{display:flex;flex:1;flex-wrap:wrap;list-style:none;margin:0;padding:0;text-align:center}.go-Footer-listItem{align-items:center;display:flex;flex:1 100%;justify-content:center;margin:.4rem 0;padding:0 1rem}.go-Footer-listItem a:link,.go-Footer-listItem a:visited{color:var(--color-text-inverted)}.go-Footer-listItem .go-Button--text{background-color:transparent;font-size:1rem}.go-Footer-listItem [data-value]{display:none}[data-theme=auto] .go-Footer-listItem [data-value=auto],:root:not([data-theme]) .go-Footer-listItem [data-value=auto]{display:initial}[data-theme=dark] .go-Footer-listItem [data-value=dark]{display:initial}[data-theme=light] .go-Footer-listItem [data-value=light]{display:initial}.go-Footer-toggleTheme,.go-Footer-keyboard{margin:0 0 .5rem}.go-Footer-googleLogo{align-self:flex-end;height:1.5rem;margin-bottom:1.3rem;text-align:right}.go-Footer-googleLogoImg{height:1.5rem;width:4.529rem}@media only screen and (min-width: 52rem){.go-Footer-listItem{flex:initial}.go-Footer-listItem+.go-Footer-listItem{border-left:var(--border)}.go-Footer-toggleTheme{margin:0 0 0 -.5rem}.go-Footer-keyboard{margin:0}}select:focus:not([disabled]),input:focus:not([disabled]){border-color:var(--color-brand-primary);-webkit-box-shadow:var(--focus-box-shadow);box-shadow:var(--focus-box-shadow);outline:transparent;z-index:2}input::placeholder{color:var(--color-text-subtle)}.go-Form{align-items:start;display:flex;flex-direction:column;gap:1rem}.go-Label{display:flex;flex-direction:column;gap:.5rem}.go-Label--inline{align-items:center;flex-direction:row}.go-Label legend{margin-bottom:.5rem}.go-Label--inline legend{float:left;margin-bottom:0}.go-Input,.go-Select{background:var(--color-input);border:var(--border);border-radius:var(--border-radius);color:var(--color-input-text)}.go-Input{padding:.40625rem .5rem}.go-Select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:url(/static/shared/icon/arrow_drop_down_gm_grey_24dp.svg) right no-repeat;background-color:var(--color-background);background-position:right center;border-radius:var(--border-radius);margin:0;padding:.34375rem 1.25rem .34375rem .5rem}.go-InputGroup{display:flex}.go-InputGroup .go-Input{flex:1}.go-InputGroup>:not(:first-child,:last-child){border-radius:0;margin-left:-.0625rem}.go-InputGroup>:first-child{border-bottom-right-radius:0;border-top-right-radius:0}.go-InputGroup>:last-child{border-bottom-left-radius:0;border-top-left-radius:0;margin-left:-.0625rem}.go-InputGroup>*:hover,.go-InputGroup>*:focus{z-index:1}.go-ShortcutKey{display:flex;position:relative}.go-ShortcutKey .go-Input{flex-grow:1}.go-ShortcutKey:after{align-self:center;background-color:var(--color-background-accented);border-radius:.5rem;color:var(--gray-6);content:attr(data-shortcut);content:attr(data-shortcut) / attr(data-shortcut-alt);display:none;font-size:.75rem;padding:.0625rem 0;position:absolute;right:.75rem;text-align:center;width:1.5rem;z-index:1}@media only screen and (min-width: 52rem){.go-ShortcutKey:after{display:initial}}.go-GopherMessage img{display:block;height:15rem;margin:0 auto;padding:1.25rem 0;width:15rem}.go-GopherMessage p{font-weight:600;margin:auto;text-align:center}.go-Banner{background-color:var(--gray-1);display:none}.go-Banner-inner{align-items:center;display:flex;justify-content:space-between;margin:0 auto;max-width:75.75rem;min-height:2.5rem;padding:.5rem var(--gutter)}.Site--wide .go-Banner-inner{max-width:98rem}.go-Banner--full .go-Banner-inner{max-width:unset}.go-Banner-message{color:var(--white);margin-right:1.25rem}.go-Banner-action:link,.go-Banner-action:visited{color:var(--white);text-decoration:underline;white-space:nowrap}@media only screen and (min-width: 52rem){.go-Banner{display:block}}.go-Header{background:#007d9c;border-bottom:none;box-shadow:0 .0625rem .125rem #ababab4d;top:0;width:100%;z-index:10}.go-Header-inner{margin:0 auto;max-width:75.75rem;padding:0 var(--gutter)}.Site--wide .go-Header-inner{max-width:98rem}.go-Header--full .go-Header-inner{max-width:initial}.go-Header-nav{align-items:center;display:flex;height:3.5rem;justify-content:space-between}.go-Header-rightContent{align-items:center;display:flex;height:100%;justify-content:flex-end;width:100%}.go-Header-rightContent form{flex-grow:1}.go-Header-inner--dark{border-bottom:none;color:var(--white)}.go-Header-logo{display:block;height:2rem;margin-right:2.25rem;width:5.125rem}.go-Header-logo--hidden{display:none}.go-Header-menuItem{display:none}.go-Header-menu{align-items:stretch;display:flex;height:100%;list-style:none;margin:0;padding:0}@media only screen and (min-width: 65rem){.go-Header-menuItem{align-items:stretch;display:inline-flex;flex:none}.go-Header-menu{justify-content:flex-end}.go-Header-navOpen{display:none}}.go-Header-menuItem a:link,.go-Header-menuItem a:visited{align-items:center;border-bottom:.1875rem solid transparent;border-top:.1875rem solid transparent;color:var(--gray-2);display:inline-flex;margin:0 .3125rem;padding:0 .9375rem;text-align:center;text-decoration:none;width:100%}.go-Header-menuItem--active a:link,.go-Header-menuItem--active a:visited{border-bottom-color:var(--turq-med);font-weight:bold}.go-Header-menuItem a:hover{border-bottom-color:var(--white);color:var(--gray-2)}.go-NavigationDrawer-listItem a:link,.go-NavigationDrawer-listItem a:visited{display:block;margin:0 1rem;padding:.5rem}.go-Header-inner--dark .go-Header-menuItem a:link,.go-Header-inner--dark .go-Header-menuItem a:visited{color:var(--white)}.go-Header-navOpen{background:no-repeat center/2rem url(/images/menu-24px.svg);border:none;height:2.5rem;margin-left:1rem;width:2.5rem}.go-Header-navOpen--hidden{display:none}.go-Header-navOpen--white{background:no-repeat center/2rem url(/static/shared/icon/menu_gm_grey_24dp.svg);filter:brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg) brightness(103%) contrast(107%)}.go-SearchForm--expanded{flex-grow:1}.go-SearchForm-form{display:none}.go-SearchForm-form:after{right:2.75rem}.go-SearchForm--expanded .go-SearchForm-form{display:flex}.go-SearchForm-expandSearch{appearance:none;background:none;font-size:1.5rem}.go-SearchForm--expanded .go-SearchForm-expandSearch{display:none}@media only screen and (min-width: 32rem){.go-Header-rightContent{width:100%}.go-SearchForm{flex:1}.go-SearchForm-form{display:flex}.go-SearchForm-expandSearch{display:none}.go-Header-logo--hidden{display:initial}}.go-NavigationDrawer{background:var(--white);height:100%;left:auto;max-width:27rem;position:fixed;right:0;top:0;transform:translate(100%);transition:transform .1s ease-in-out;width:85%;z-index:30}@media only screen and (min-width: 65rem){.go-NavigationDrawer{display:none}}.go-NavigationDrawer.is-active{transform:translate(0)}.go-NavigationDrawer-header{align-items:center;display:flex;justify-content:space-between}.go-NavigationDrawer-logo{display:block;height:2rem;margin:1rem;width:5.125rem}.go-NavigationDrawer-list{list-style:none;margin:0;padding:0}.go-NavigationDrawer-listItem{font-size:1.125rem;margin:0 .5rem}.go-NavigationDrawer-listItem--active{background-color:var(--blue);border-radius:.4rem}.go-NavigationDrawer-scrim{display:none;height:100%;left:0;position:fixed;top:0;width:100%;z-index:20}.go-NavigationDrawer.is-active+.go-NavigationDrawer-scrim{background-color:var(--gray-1);display:block;opacity:.32}.go-Icon{filter:none;height:1.125em;vertical-align:text-bottom;width:auto}.go-Icon--accented{filter:brightness(0) invert(45%) sepia(94%) saturate(6735%) hue-rotate(176deg) brightness(94%) contrast(101%)}.go-Icon--inverted{filter:brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg) brightness(103%) contrast(107%)}[data-theme=dark] .go-Icon:not(.go-Icon--accented){filter:brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg) brightness(103%) contrast(107%)}[data-theme=dark] .go-Icon--accented{filter:brightness(0) invert(69%) sepia(46%) saturate(466%) hue-rotate(153deg) brightness(90%) contrast(88%)}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .go-Icon:not(.go-Icon--accented){filter:brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg) brightness(103%) contrast(107%)}:root:not([data-theme="light"]) .go-Icon--accented{filter:brightness(0) invert(57%) sepia(63%) saturate(4864%) hue-rotate(160deg) brightness(100%) contrast(101%)}}.go-Message{color:var(--color-text);font-size:.875rem;line-height:1.5rem;padding:0 var(--gutter);width:100%}.go-Message--notice{background-color:var(--color-background-info)}.go-Message--warning{background-color:var(--color-background-warning);color:var(--gray-1)}.go-Message--alert{background-color:var(--color-background-alert)}.go-Message>.go-Icon{vertical-align:text-top}[data-theme=dark] .go-Message--warning .go-Icon{filter:none}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .go-Message--warning .go-Icon{filter:none}}dialog{position:absolute;left:0;right:0;width:-moz-fit-content;width:-webkit-fit-content;width:fit-content;height:-moz-fit-content;height:-webkit-fit-content;height:fit-content;margin:auto;border:solid;padding:1em;background:white;color:#000;display:block}dialog:not([open]){display:none}dialog+.backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:rgba(0,0,0,.1)}._dialog_overlay{position:fixed;top:0;right:0;bottom:0;left:0}dialog.fixed{position:fixed;top:50%;transform:translateY(-50%)}.go-Modal{background:var(--color-background);border:var(--border);border-radius:var(--border-radius);bottom:0;box-shadow:var(--box-shadow);color:var(--color-text);display:flex;flex-direction:column;gap:1rem;max-height:100%;max-width:100%;position:fixed;top:0}.go-Modal>form{display:contents}.go-Modal--small{width:20rem}.go-Modal--md{width:30rem}.go-Modal--lg{width:40rem}.go-Modal-header{display:flex;justify-content:space-between}.go-Modal-header h2{font-size:1.15rem;line-height:1.25rem}.go-Modal-body{flex-grow:1;min-height:2rem;min-width:18rem}.go-Modal-actions{text-align:right}@media not all and (min-resolution: .001dpcm){@supports (-webkit-appearance: none){.go-Modal{padding-bottom:0}}}.go-Tree{--js-tree-height: 0;display:flex;flex-direction:column}.go-Tree ul{list-style:none;padding-left:0}.go-Tree li:last-of-type{padding-bottom:.25rem}.go-Tree a+ul{display:none}.go-Tree a[aria-expanded=true]+ul[role=group]{display:block}.go-Tree a[aria-level="1"]+ul[role=group]{max-height:calc(100vh - var(--js-tree-height, 0) - var(--js-sticky-header-height, 3.5rem) - 5rem);overflow-y:auto;padding:.5rem .25rem 0}.go-Tree a{color:var(--color-text-subtle);display:block;line-height:1.5rem;overflow:hidden;padding:.125rem 0 .125rem 1.25rem;position:relative;text-overflow:ellipsis;user-select:none;white-space:nowrap}.go-Tree>li>a,.go-Tree a[aria-level="1"]{display:block;font-size:1rem;font-weight:500;line-height:2.5rem;padding:0 1rem}.go-Tree a:focus,.go-Tree a:hover{text-decoration:underline;z-index:1}.go-Tree a[aria-selected=true]{color:var(--color-text);font-weight:500}.go-Tree a[aria-level="1"][aria-selected=true],.go-Tree a[aria-level="1"][aria-expanded=true]{background-color:var(--color-background-accented)}.go-Tree a[aria-level="3"][aria-expanded=true]{margin-bottom:.375em}.go-Tree a[aria-level="2"]{margin-bottom:.25rem;position:relative}.go-Tree a[aria-level="3"]{padding-left:2.5rem}.go-Tree a[aria-level="4"]{border-left:.125rem solid var(--color-background-accented);margin-left:2.5rem;padding-left:.5rem}.go-Tree a[aria-selected=true][aria-level="2"]:not([aria-expanded]):before,.go-Tree a[aria-selected=true][aria-level="3"]:not([aria-expanded]):before{background-color:var(--color-brand-primary);border-radius:50%;content:"";display:block;height:.3125rem;left:.4688rem;position:absolute;top:.75rem;width:.3125rem}.go-Tree a[aria-expanded][aria-owns][aria-level="2"]:before,.go-Tree a[aria-expanded][aria-owns][aria-level="3"]:before{border-bottom:.25rem solid transparent;border-left:.25rem solid var(--color-border);border-right:0;border-top:.25rem solid transparent;content:"";display:block;height:0;left:.5rem;position:absolute;top:.625rem;transition:transform .1s linear;width:0}.go-Tree a[aria-expanded=true][aria-level="2"]:before,.go-Tree a[aria-expanded=true][aria-level="3"]:before{transform:rotate(90deg)}.go-Tree a[aria-expanded][aria-level="3"]:not([empty]):before,.go-Tree a[aria-selected][aria-level="3"]:not([empty]):before{left:1.5rem;top:.75rem}.go-Tree a[aria-selected=true][aria-level="4"]{border-left:.125rem solid var(--color-brand-primary)}.go-TabNav{margin:0 0 .5rem}.go-TabNav ul{display:flex;gap:2rem}.go-TabNav li{border-bottom:.25rem transparent solid;display:flex;font-size:1rem;height:2.375rem;padding:0 .25rem}.go-TabNav li[aria-current]{border-color:var(--color-brand-primary)}.go-TabNav li:hover{border-color:var(--color-brand-primary)}.go-TabNav a{align-items:center;color:var(--color-text-subtle);display:inline-flex}.go-TabNav li:hover a{text-decoration:none}.go-TabNav li[aria-current] a{color:var(--color-text)}.go-Tooltip{border-radius:var(--border-radius);cursor:pointer;display:inline-block;position:relative}.go-Tooltip>summary{list-style:none}.go-Tooltip>summary::-webkit-details-marker,.go-Tooltip>summary::marker{display:none}.go-Tooltip>summary>img{vertical-align:text-bottom}.go-Tooltip p{background:var(--color-background) 80%;border:var(--border);border-radius:var(--border-radius);color:var(--color-text);font-size:.75rem;letter-spacing:.01875rem;line-height:1rem;padding:.5rem;position:absolute;top:1.5rem;white-space:normal;width:12rem;z-index:100}:root{--gutter: 1rem;--gap: 1rem;--scroll-margin: calc( var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 2rem );--border: .0625rem solid var(--color-border);--border-radius: .25rem;--box-shadow: 0 0 .375rem 0 rgb(0 0 0 / 25%);--focus-box-shadow: 0 0 .0625rem .0625rem rgba(0, 112, 210, .6)}[data-theme=dark]{--box-shadow: 0 .3125rem .9375rem rgb(0 0 0 / 45%)}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--box-shadow: 0 .3125rem .9375rem rgb(0 0 0 / 45%)}}@media (min-width: 50rem){:root{--gutter: 1.5rem;--gap: 2rem;--scroll-margin: calc( var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 1rem )}}@media (min-width: 80rem){:root{--gutter: 2rem}}@media (min-width: 112rem){:root{--gutter: 2.5rem}}*:target{scroll-margin-top:var(--scroll-margin)}body{background-color:var(--color-background);display:flex;flex-direction:column;min-height:100vh;min-width:23.5rem;-webkit-overflow-scrolling:touch}.go-Container{display:flex;flex-direction:column;flex-grow:1;height:100%;margin-bottom:5rem}.go-Content{display:flex;flex-flow:column;gap:1rem;margin:0 auto;max-width:63rem;min-height:32rem;padding:2rem var(--gutter);width:100%}.go-Content--center{justify-content:center;margin:auto}
+html,body,button,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,hr,input,p,blockquote,pre,a,abbr,acronym,address,big,cite,code,del,dfn,dialog,em,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,b,u,i,center,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,canvas,details,embed,figure,figcaption,footer,header,hgroup,menu,nav,output,ruby,section,summary,time,mark,audio,video{border:0;font:inherit;font-size:100%;margin:0;padding:0;vertical-align:baseline}article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{display:block}body{line-height:1}ol,ul{list-style:none}blockquote,q{quotes:none}blockquote:before,blockquote:after,q:before,q:after{content:"";content:none}table{border-collapse:collapse;border-spacing:0}*,:before,:after{box-sizing:border-box}body{color:var(--color-text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";font-size:1rem;line-height:normal}h1{font-size:1.5rem}h2{font-size:1.375rem}h3{font-size:1.25rem}h4{font-size:1.125rem}h5{font-size:1rem}h6{font-size:.875rem}h1,h2,h3,h4{font-weight:600;line-height:1.25em;word-break:break-word}h5,h6{font-weight:500;line-height:1.3em;word-break:break-word}hr{border:none;border-bottom:var(--border);margin:0;width:100%}p{font-size:1rem;line-height:1.5rem;max-width:60rem}strong{font-weight:600}.go-textSubtle{color:var(--color-text-subtle)}.go-textTitle{font-size:1.125rem;font-weight:600;line-height:1.25rem}.go-textLabel{font-size:.875rem;font-weight:600;line-height:1rem}.go-textPagination{font-size:.875rem;line-height:1rem}code,pre,textarea.code{font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:.875rem;line-height:1.5em}pre,textarea.code{background-color:var(--color-background-accented);border:var(--border);border-radius:var(--border-radius);color:var(--color-text);overflow-x:auto;padding:.625rem;tab-size:4;white-space:pre}button,input,select,textarea{font:inherit}a,a:link,a:visited{color:var(--color-brand-primary);text-decoration:none}a:hover,a:hover>*{color:var(--color-brand-primary);text-decoration:underline}button:focus:not([disabled]){border-color:var(--color-brand-primary);-webkit-box-shadow:var(--focus-box-shadow);box-shadow:var(--focus-box-shadow);outline:transparent}.go-Button{align-items:center;background-color:var(--color-button);border:.0625rem solid transparent;border-radius:var(--border-radius);color:var(--color-button-text);cursor:pointer;display:inline-flex;font-weight:500;gap:.25rem}.go-Button:not(.go-Button--inline){padding:.5rem}.go-Button--accented{background-color:var(--color-button-accented);color:var(--color-button-accented-text)}.go-Button--inverted,.go-Button--text,.go-Button--inline{background-color:var(--color-button-inverted);color:var(--color-button-inverted-text)}.go-Button--inline{background-color:transparent}.go-Button--inverted{border:var(--border)}.go-Button:hover{box-shadow:var(--focus-box-shadow);filter:contrast(.95)}.go-Button--inline:hover{box-shadow:none;text-decoration:underline 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var(--color-text-subtle);--color-button-accented: var(--yellow);--color-button-accented-disabled: var(--gray-9);--color-button-accented-text: var(--gray-1);--color-button-accented-text-disabled: var(--gray-3)}[data-theme=dark]{--color-brand-primary: var(--turq-med);--color-background: var(--gray-1);--color-background-accented: var(--gray-2);--color-background-highlighted: var(--gray-2);--color-background-highlighted-link: var(--gray-2);--color-background-info: var(--gray-3);--color-background-warning: var(--yellow);--color-background-alert: var(--pink);--color-border: var(--gray-4);--color-text: var(--gray-9);--color-text-subtle: var(--gray-7);--color-code-comment: var(--green-light)}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--color-brand-primary: var(--turq-med);--color-background: var(--gray-1);--color-background-accented: var(--gray-2);--color-background-highlighted: var(--gray-2);--color-background-highlighted-link: var(--gray-2);--color-background-info: var(--gray-3);--color-background-warning: var(--yellow);--color-background-alert: var(--pink);--color-border: var(--gray-4);--color-text: var(--gray-9);--color-text-subtle: var(--gray-7);--color-code-comment: var(--green-light)}}.go-Footer{background-color:var(--color-background-inverted);color:var(--color-text-inverted);font-size:.875rem;width:100%}.go-Footer-links{display:flex;flex-wrap:wrap;justify-content:space-between;margin:auto;max-width:75.75rem;padding:2rem 1.5rem 2.625rem}.go-Footer-linkColumn{flex:0 0 9.5rem}.go-Footer .go-Footer-link{color:var(--color-text-inverted);display:flex;flex:1;font-size:.875rem;line-height:2rem}.go-Footer .go-Footer-link--primary{font-size:1.125rem;line-height:1.75rem;margin-bottom:.5rem;margin-top:.75rem}.go-Footer-bottom{align-items:center;border-top:var(--border);display:flex;margin:0 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form{flex-grow:1}.go-Header-inner--dark{border-bottom:none;color:var(--white)}.go-Header-logo{display:block;height:2rem;margin-right:2.25rem;width:5.125rem}.go-Header-logo--hidden{display:none}.go-Header-menuItem{display:none}.go-Header-menu{align-items:stretch;display:flex;height:100%;list-style:none;margin:0;padding:0}@media only screen and (min-width: 65rem){.go-Header-menuItem{align-items:stretch;display:inline-flex;flex:none}.go-Header-menu{justify-content:flex-end}.go-Header-navOpen{display:none}}.go-Header-menuItem a:link,.go-Header-menuItem a:visited{align-items:center;border-bottom:.1875rem solid transparent;border-top:.1875rem solid transparent;color:var(--gray-2);display:inline-flex;margin:0 .3125rem;padding:0 .9375rem;text-align:center;text-decoration:none;width:100%}.go-Header-menuItem--active a:link,.go-Header-menuItem--active a:visited{border-bottom-color:var(--turq-med);font-weight:bold}.go-Header-menuItem a:hover{border-bottom-color:var(--white);color:var(--gray-2)}.go-NavigationDrawer-listItem a:link,.go-NavigationDrawer-listItem a:visited{display:block;margin:0 1rem;padding:.5rem}.go-Header-inner--dark .go-Header-menuItem a:link,.go-Header-inner--dark .go-Header-menuItem a:visited{color:var(--white)}.go-Header-navOpen{background:no-repeat center/2rem url(/images/menu-24px.svg);border:none;height:2.5rem;margin-left:1rem;width:2.5rem}.go-Header-navOpen--hidden{display:none}.go-Header-navOpen--white{background:no-repeat center/2rem url(/static/shared/icon/menu_gm_grey_24dp.svg);filter:brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg) brightness(103%) contrast(107%)}.go-SearchForm--expanded{flex-grow:1}.go-SearchForm-form{display:none}.go-SearchForm-form:after{right:2.75rem}.go-SearchForm--expanded .go-SearchForm-form{display:flex}.go-SearchForm-expandSearch{appearance:none;background:none;font-size:1.5rem}.go-SearchForm--expanded 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.5rem}.go-NavigationDrawer-listItem--active{background-color:var(--blue);border-radius:.4rem}.go-NavigationDrawer-scrim{display:none;height:100%;left:0;position:fixed;top:0;width:100%;z-index:20}.go-NavigationDrawer.is-active+.go-NavigationDrawer-scrim{background-color:var(--gray-1);display:block;opacity:.32}.go-Icon{filter:none;height:1.125em;vertical-align:text-bottom;width:auto}.go-Icon--accented{filter:brightness(0) invert(45%) sepia(94%) saturate(6735%) hue-rotate(176deg) brightness(94%) contrast(101%)}.go-Icon--inverted{filter:brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg) brightness(103%) contrast(107%)}[data-theme=dark] .go-Icon:not(.go-Icon--accented){filter:brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg) brightness(103%) contrast(107%)}[data-theme=dark] .go-Icon--accented{filter:brightness(0) invert(69%) sepia(46%) saturate(466%) hue-rotate(153deg) brightness(90%) contrast(88%)}@media 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a[aria-expanded][aria-owns][aria-level="3"]:before{border-bottom:.25rem solid transparent;border-left:.25rem solid var(--color-border);border-right:0;border-top:.25rem solid transparent;content:"";display:block;height:0;left:.5rem;position:absolute;top:.625rem;transition:transform .1s linear;width:0}.go-Tree a[aria-expanded=true][aria-level="2"]:before,.go-Tree a[aria-expanded=true][aria-level="3"]:before{transform:rotate(90deg)}.go-Tree a[aria-expanded][aria-level="3"]:not([empty]):before,.go-Tree a[aria-selected][aria-level="3"]:not([empty]):before{left:1.5rem;top:.75rem}.go-Tree a[aria-selected=true][aria-level="4"]{border-left:.125rem solid var(--color-brand-primary)}.go-TabNav{margin:0 0 .5rem}.go-TabNav ul{display:flex;gap:2rem}.go-TabNav li{border-bottom:.25rem transparent solid;display:flex;font-size:1rem;height:2.375rem;padding:0 .25rem}.go-TabNav li[aria-current]{border-color:var(--color-brand-primary)}.go-TabNav li:hover{border-color:var(--color-brand-primary)}.go-TabNav a{align-items:center;color:var(--color-text-subtle);display:inline-flex}.go-TabNav li:hover a{text-decoration:none}.go-TabNav li[aria-current] a{color:var(--color-text)}.go-Tooltip{border-radius:var(--border-radius);cursor:pointer;display:inline-block;position:relative}.go-Tooltip>summary{list-style:none}.go-Tooltip>summary::-webkit-details-marker,.go-Tooltip>summary::marker{display:none}.go-Tooltip>summary>img{vertical-align:text-bottom}.go-Tooltip p{background:var(--color-background) 80%;border:var(--border);border-radius:var(--border-radius);color:var(--color-text);font-size:.75rem;letter-spacing:.01875rem;line-height:1rem;padding:.5rem;position:absolute;top:1.5rem;white-space:normal;width:12rem;z-index:100}:root{--gutter: 1rem;--gap: 1rem;--scroll-margin: calc( var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 2rem );--border: .0625rem solid var(--color-border);--border-radius: .25rem;--box-shadow: 0 0 .375rem 0 rgb(0 0 0 / 25%);--focus-box-shadow: 0 0 .0625rem .0625rem rgba(0, 112, 210, .6)}[data-theme=dark]{--box-shadow: 0 .3125rem .9375rem rgb(0 0 0 / 45%)}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--box-shadow: 0 .3125rem .9375rem rgb(0 0 0 / 45%)}}@media (min-width: 50rem){:root{--gutter: 1.5rem;--gap: 2rem;--scroll-margin: calc( var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 1rem )}}@media (min-width: 80rem){:root{--gutter: 2rem}}@media (min-width: 112rem){:root{--gutter: 2.5rem}}*:target{scroll-margin-top:var(--scroll-margin)}body{background-color:var(--color-background);display:flex;flex-direction:column;min-height:100vh;min-width:23.5rem;-webkit-overflow-scrolling:touch}.go-Container{display:flex;flex-direction:column;flex-grow:1;height:100%;margin-bottom:5rem}.go-Content{display:flex;flex-flow:column;gap:1rem;margin:0 auto;max-width:63rem;min-height:32rem;padding:2rem var(--gutter);width:100%}.go-Content--center{justify-content:center;margin:auto}.JumpDialog-body{height:12rem;overflow-y:auto}.JumpDialog-list{display:flex;flex-direction:column}.JumpDialog-input{width:100%}.JumpDialog a{padding:.25rem;text-decoration:none}.JumpDialog .JumpDialog-active{background-color:var(--color-brand-primary);color:var(--white)}.ShortcutsDialog-key{text-align:right}.ShortcutsDialog table{padding:0 1rem}.ShortcutsDialog td{padding-bottom:.5rem;padding-left:.5rem}.ShortcutsDialog-theme span{display:none}[data-theme=light] .ShortcutsDialog-themeLight{display:initial}[data-theme=dark] .ShortcutsDialog-themeDark{display:initial}[data-theme=""] .ShortcutsDialog-themeAuto,[data-theme=auto] .ShortcutsDialog-themeAuto{display:initial}
 /*# sourceMappingURL=frontend.min.css.map */
diff --git a/static/frontend/frontend.min.css.map b/static/frontend/frontend.min.css.map
index ad4231a..195a657 100644
--- a/static/frontend/frontend.min.css.map
+++ b/static/frontend/frontend.min.css.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
-  "sources": ["../shared/reset.css", "../shared/typography/typography.css", "../shared/button/button.css", "../shared/breadcrumb/breadcrumb.css", "../shared/carousel/carousel.css", "../shared/chip/chip.css", "../shared/clipboard/clipboard.css", "../shared/color/color.css", "../shared/footer/footer.css", "../shared/form/form.css", "../shared/gopher/gopher.css", "../shared/header/header.css", "../shared/icon/icon.css", "../shared/message/message.css", "../../third_party/dialog-polyfill/dialog-polyfill.css", "../shared/modal/modal.css", "../shared/outline/tree.css", "../shared/tabnav/tabnav.css", "../shared/tooltip/tooltip.css", "../shared/shared.css"],
-  "sourcesContent": ["/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/*!\n * http://meyerweb.com/eric/tools/css/reset/\n * v2.0 | 20110126\n * License: none (public domain)\n */\n\nhtml,\nbody,\nbutton,\ndiv,\nspan,\napplet,\nobject,\niframe,\nh1,\nh2,\nh3,\nh4,\nh5,\nh6,\nhr,\ninput,\np,\nblockquote,\npre,\na,\nabbr,\nacronym,\naddress,\nbig,\ncite,\ncode,\ndel,\ndfn,\ndialog,\nem,\nimg,\nins,\nkbd,\nq,\ns,\nsamp,\nsmall,\nstrike,\nstrong,\nsub,\nsup,\ntt,\nvar,\nb,\nu,\ni,\ncenter,\ndl,\ndt,\ndd,\nol,\nul,\nli,\nfieldset,\nform,\nlabel,\nlegend,\ntable,\ncaption,\ntbody,\ntfoot,\nthead,\ntr,\nth,\ntd,\narticle,\naside,\ncanvas,\ndetails,\nembed,\nfigure,\nfigcaption,\nfooter,\nheader,\nhgroup,\nmenu,\nnav,\noutput,\nruby,\nsection,\nsummary,\ntime,\nmark,\naudio,\nvideo {\n  border: 0;\n  font: inherit;\n  font-size: 100%;\n  margin: 0;\n  padding: 0;\n  vertical-align: baseline;\n}\n\n/* HTML5 display-role reset for older browsers */\narticle,\naside,\ndetails,\nfigcaption,\nfigure,\nfooter,\nheader,\nhgroup,\nmenu,\nnav,\nsection {\n  display: block;\n}\nbody {\n  line-height: 1;\n}\nol,\nul {\n  list-style: none;\n}\nblockquote,\nq {\n  quotes: none;\n}\nblockquote::before,\nblockquote::after,\nq::before,\nq::after {\n  content: '';\n  content: none;\n}\ntable {\n  border-collapse: collapse;\n  border-spacing: 0;\n}\n\n*,\n::before,\n::after {\n  box-sizing: border-box;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nbody {\n  color: var(--color-text);\n  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif,\n    'Apple Color Emoji', 'Segoe UI Emoji';\n  font-size: 1rem;\n  line-height: normal;\n}\nh1 {\n  font-size: 1.5rem;\n}\nh2 {\n  font-size: 1.375rem;\n}\nh3 {\n  font-size: 1.25rem;\n}\nh4 {\n  font-size: 1.125rem;\n}\nh5 {\n  font-size: 1rem;\n}\nh6 {\n  font-size: 0.875rem;\n}\n\nh1,\nh2,\nh3,\nh4 {\n  font-weight: 600;\n  line-height: 1.25em;\n  word-break: break-word;\n}\nh5,\nh6 {\n  font-weight: 500;\n  line-height: 1.3em;\n  word-break: break-word;\n}\n\nhr {\n  border: none;\n  border-bottom: var(--border);\n  margin: 0;\n  width: 100%;\n}\n\np {\n  font-size: 1rem;\n  line-height: 1.5rem;\n  max-width: 60rem;\n}\nstrong {\n  font-weight: 600;\n}\n\n.go-textSubtle {\n  color: var(--color-text-subtle);\n}\n.go-textTitle {\n  font-size: 1.125rem;\n  font-weight: 600;\n  line-height: 1.25rem;\n}\n.go-textLabel {\n  font-size: 0.875rem;\n  font-weight: 600;\n  line-height: 1rem;\n}\n.go-textPagination {\n  font-size: 0.875rem;\n  line-height: 1rem;\n}\ncode,\npre,\ntextarea.code {\n  font-family: SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;\n  font-size: 0.875rem;\n  line-height: 1.5em;\n}\npre,\ntextarea.code {\n  background-color: var(--color-background-accented);\n  border: var(--border);\n  border-radius: var(--border-radius);\n  color: var(--color-text);\n  overflow-x: auto;\n  padding: 0.625rem;\n  tab-size: 4;\n  white-space: pre;\n}\n\nbutton,\ninput,\nselect,\ntextarea {\n  font: inherit;\n}\n\na,\na:link,\na:visited {\n  color: var(--color-brand-primary);\n  text-decoration: none;\n}\na:hover,\na:hover > * {\n  color: var(--color-brand-primary);\n  text-decoration: underline;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nbutton:focus:not([disabled]) {\n  border-color: var(--color-brand-primary);\n  -webkit-box-shadow: var(--focus-box-shadow);\n  box-shadow: var(--focus-box-shadow);\n  outline: transparent;\n}\n\n.go-Button {\n  align-items: center;\n  background-color: var(--color-button);\n  border: 0.0625rem solid transparent;\n  border-radius: var(--border-radius);\n  color: var(--color-button-text);\n  cursor: pointer;\n  display: inline-flex;\n  font-weight: 500;\n  gap: 0.25rem;\n}\n.go-Button:not(.go-Button--inline) {\n  padding: 0.5rem;\n}\n\n.go-Button--accented {\n  background-color: var(--color-button-accented);\n  color: var(--color-button-accented-text);\n}\n.go-Button--inverted,\n.go-Button--text,\n.go-Button--inline {\n  background-color: var(--color-button-inverted);\n  color: var(--color-button-inverted-text);\n}\n.go-Button--inline {\n  background-color: transparent;\n}\n\n.go-Button--inverted {\n  border: var(--border);\n}\n\n.go-Button:hover {\n  box-shadow: var(--focus-box-shadow);\n  filter: contrast(0.95);\n}\n.go-Button--inline:hover {\n  box-shadow: none;\n  text-decoration: underline var(--color-button-inverted-text);\n}\n.go-Button:focus {\n  filter: contrast(0.95);\n}\n.go-Button--inverted:focus {\n  border-color: var(--color-button-inverted-text);\n}\n.go-Button:active {\n  box-shadow: none;\n  filter: contrast(0.85);\n}\n\n.go-Button:disabled {\n  background-color: var(--color-button-disabled);\n  box-shadow: none;\n  color: var(--color-button-text-disabled);\n  cursor: initial;\n  filter: none;\n  text-decoration: none;\n}\n.go-Button--accented:disabled {\n  background-color: var(--color-button-accented-disabled);\n  color: var(--color-button-accented-text-disabled);\n}\n.go-Button--inverted:disabled,\n.go-Button--text:disabled,\n.go-Button--inline:disabled {\n  background-color: var(--color-button-inverted-disabled);\n  color: var(--color-button-inverted-text-disabled);\n}\n.go-Button--inline:disabled {\n  background-color: transparent;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Breadcrumb ol {\n  line-height: 1.5rem;\n  white-space: initial;\n}\n.go-Breadcrumb li {\n  align-items: center;\n  color: var(--color-text-subtle);\n  display: inline-flex;\n  font-size: 0.875rem;\n}\n.go-Breadcrumb li:not(:last-child)::after {\n  content: '>';\n  padding: 0 0.5rem;\n}\n.go-Breadcrumb li:last-child > a {\n  color: var(--color-text-subtle);\n}\n.go-Breadcrumb li > .go-Clipboard {\n  margin: 0 0.5rem;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Carousel {\n  align-items: center;\n  display: flex;\n  flex-direction: column;\n  position: relative;\n  text-align: center;\n}\n.go-Carousel-slide {\n  margin: 0.5rem 3rem;\n}\n.go-Carousel-slide[aria-hidden] {\n  display: none;\n}\n.go-Carousel-prevSlide {\n  left: 0;\n}\n.go-Carousel-nextSlide {\n  right: 0;\n}\n.go-Carousel-prevSlide,\n.go-Carousel-nextSlide {\n  background-color: transparent;\n  border-radius: var(--border-radius);\n  font-size: 1.5rem;\n  height: 2.75rem;\n  margin-top: -1.375rem;\n  opacity: 0;\n  position: absolute;\n  top: 50%;\n  width: 2.75rem;\n}\n.go-Carousel-prevSlide:hover,\n.go-Carousel-nextSlide:hover {\n  background-color: var(--color-background-accented);\n  cursor: pointer;\n}\n.go-Carousel:hover .go-Carousel-prevSlide,\n.go-Carousel:hover .go-Carousel-nextSlide,\n.go-Carousel:focus-within .go-Carousel-prevSlide,\n.go-Carousel:focus-within .go-Carousel-nextSlide {\n  opacity: 1;\n}\n.go-Carousel-dots {\n  display: flex;\n  font-size: 0.4375rem;\n  gap: 0.5rem;\n}\n.go-Carousel-dot {\n  background-color: var(--color-border);\n  border-radius: 2rem;\n  height: 0.4375rem;\n  width: 0.4375rem;\n}\n.go-Carousel-dot--active,\n.go-Carousel-dot:hover {\n  background-color: var(--color-text-subtle);\n}\n.go-Carousel-obscured {\n  border: 0;\n  clip: rect(0 0 0 0);\n  height: 0.0625rem;\n  margin: -0.0625rem;\n  overflow: hidden;\n  padding: 0;\n  position: absolute;\n  width: 0.0625rem;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Chip {\n  background: var(--color-button);\n  border: 0.0625rem solid var(--color-button);\n  border-radius: 1.25rem;\n  color: var(--color-button-text);\n  font-size: 0.75rem;\n  padding: 0.125rem 0.625rem;\n}\n.go-Chip--accented {\n  background: var(--color-button-accented);\n  border: 0.0625rem solid var(--color-button-accented);\n  color: var(--color-button-accented-text);\n}\n.go-Chip--inverted {\n  background: var(--color-button-inverted);\n  border: var(--border);\n  color: var(--color-text);\n}\n.go-Chip--highlighted {\n  background: var(--color-background-highlighted-link);\n  border-color: var(--color-background-highlighted-link);\n  color: var(--color-brand-primary);\n}\n.go-Chip--alert {\n  background: var(--pink);\n  border: 0.0625rem solid var(--pink);\n  color: var(--color-text-inverted);\n}\n.go-Chip--vuln {\n  background: var(--pink-light);\n  border: 0.0625rem solid var(--pink-light);\n  color: var(--color-text-inverted);\n}\n.go-Chip--subtle {\n  background-color: var(--color-background-accented);\n  border-color: transparent;\n  color: var(--color-text-subtle);\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Clipboard {\n  position: relative;\n}\n.go-Clipboard::before {\n  background-color: var(--color-background-inverted);\n  border-radius: var(--border-radius);\n  color: var(--color-text-inverted);\n  content: attr(data-tooltip);\n  display: block;\n  font-size: 0.9em;\n  left: calc(100% + 0.125rem);\n  padding: 0.25rem 0.3rem;\n  position: absolute;\n  text-transform: uppercase;\n  top: 0.125rem;\n  white-space: nowrap;\n  z-index: 1000;\n}\n.go-Clipboard::after {\n  border-bottom: 0.25rem solid transparent;\n  border-left: 0;\n  border-right: 0.25rem solid var(--color-background-inverted);\n  border-top: 0.25rem solid transparent;\n  content: '';\n  display: block;\n  position: absolute;\n  right: -0.125rem;\n  top: 0.5625rem;\n  z-index: 1000;\n}\n.go-Clipboard:not([data-tooltip])::before,\n.go-Clipboard:not([data-tooltip])::after,\n.go-Clipboard[data-tooltip='']::before,\n.go-Clipboard[data-tooltip='']::after {\n  display: none;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n:root {\n  /* Colors */\n  --gray-1: #202224;\n  --gray-2: #3e4042;\n  --gray-3: #555759;\n  --gray-4: #6e7072;\n  --gray-5: #848688;\n  --gray-6: #aaacae;\n  --gray-7: #c6c8ca;\n  --gray-8: #dcdee0;\n  --gray-9: #f0f1f2;\n  --gray-10: #f8f8f8;\n  --turq-light: #5dc9e2;\n  --turq-med: #50b7e0;\n  --turq-dark: #007d9c;\n  --blue: #bfeaf4;\n  --blue-light: #f2fafd;\n  --black: #000;\n  --green: #3a6e11;\n  --green-light: #5fda64;\n  --pink: #ce3262;\n  --pink-light: #fdecf1;\n  --purple: #542c7d;\n  --slate: #253443; /* Footer background. */\n  --white: #fff;\n  --yellow: #fddd00;\n  --yellow-light: #fff8cc;\n\n  /* Color Intents */\n  --color-brand-primary: var(--turq-dark);\n  --color-background: var(--white);\n  --color-background-inverted: var(--slate);\n  --color-background-accented: var(--gray-10);\n  --color-background-highlighted: var(--blue);\n  --color-background-highlighted-link: var(--blue-light);\n  --color-background-info: var(--gray-9);\n  --color-background-warning: var(--yellow-light);\n  --color-background-alert: var(--pink-light);\n  --color-border: var(--gray-7);\n  --color-text: var(--gray-1);\n  --color-text-subtle: var(--gray-4);\n  --color-text-inverted: var(--white);\n  --color-code-comment: var(--green);\n\n  /* Interactive Colors */\n  --color-input: var(--color-background);\n  --color-input-text: var(--color-text);\n  --color-button: var(--turq-dark);\n  --color-button-disabled: var(--gray-9);\n  --color-button-text: var(--white);\n  --color-button-text-disabled: var(--gray-3);\n  --color-button-inverted: var(--color-background);\n  --color-button-inverted-disabled: var(--color-background);\n  --color-button-inverted-text: var(--color-brand-primary);\n  --color-button-inverted-text-disabled: var(--color-text-subtle);\n  --color-button-accented: var(--yellow);\n  --color-button-accented-disabled: var(--gray-9);\n  --color-button-accented-text: var(--gray-1);\n  --color-button-accented-text-disabled: var(--gray-3);\n}\n\n[data-theme='dark'] {\n  --color-brand-primary: var(--turq-med);\n  --color-background: var(--gray-1);\n  --color-background-accented: var(--gray-2);\n  --color-background-highlighted: var(--gray-2);\n  --color-background-highlighted-link: var(--gray-2);\n  --color-background-info: var(--gray-3);\n  --color-background-warning: var(--yellow);\n  --color-background-alert: var(--pink);\n  --color-border: var(--gray-4);\n  --color-text: var(--gray-9);\n  --color-text-subtle: var(--gray-7);\n  --color-code-comment: var(--green-light);\n}\n@media (prefers-color-scheme: dark) {\n  :root:not([data-theme='light']) {\n    --color-brand-primary: var(--turq-med);\n    --color-background: var(--gray-1);\n    --color-background-accented: var(--gray-2);\n    --color-background-highlighted: var(--gray-2);\n    --color-background-highlighted-link: var(--gray-2);\n    --color-background-info: var(--gray-3);\n    --color-background-warning: var(--yellow);\n    --color-background-alert: var(--pink);\n    --color-border: var(--gray-4);\n    --color-text: var(--gray-9);\n    --color-text-subtle: var(--gray-7);\n    --color-code-comment: var(--green-light);\n  }\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Footer {\n  background-color: var(--color-background-inverted);\n  color: var(--color-text-inverted);\n  font-size: 0.875rem;\n  width: 100%;\n}\n.go-Footer-links {\n  display: flex;\n  flex-wrap: wrap;\n  justify-content: space-between;\n  margin: auto;\n  max-width: 75.75rem;\n  padding: 2rem 1.5rem 2.625rem 1.5rem;\n}\n.go-Footer-linkColumn {\n  flex: 0 0 9.5rem;\n}\n.go-Footer .go-Footer-link {\n  color: var(--color-text-inverted);\n  display: flex;\n  flex: 1;\n  font-size: 0.875rem;\n  line-height: 2rem;\n}\n.go-Footer .go-Footer-link--primary {\n  font-size: 1.125rem;\n  line-height: 1.75rem;\n  margin-bottom: 0.5rem;\n  margin-top: 0.75rem;\n}\n.go-Footer-bottom {\n  align-items: center;\n  border-top: var(--border);\n  display: flex;\n  margin: 0 1.5rem;\n  min-height: 4.125rem;\n}\n.go-Footer-gopher {\n  align-self: flex-end;\n  height: 3.147rem;\n  width: 5rem;\n}\n.go-Footer-listRow {\n  display: flex;\n  flex: 1;\n  flex-wrap: wrap;\n  list-style: none;\n  margin: 0;\n  padding: 0;\n  text-align: center;\n}\n.go-Footer-listItem {\n  align-items: center;\n  display: flex;\n  flex: 1 100%;\n  justify-content: center;\n  margin: 0.4rem 0;\n  padding: 0 1rem;\n}\n.go-Footer-listItem a:link,\n.go-Footer-listItem a:visited {\n  color: var(--color-text-inverted);\n}\n.go-Footer-listItem .go-Button--text {\n  background-color: transparent;\n  font-size: 1rem;\n}\n.go-Footer-listItem [data-value] {\n  display: none;\n}\n\n[data-theme='auto'] .go-Footer-listItem [data-value='auto'],\n:root:not([data-theme]) .go-Footer-listItem [data-value='auto'] {\n  display: initial;\n}\n[data-theme='dark'] .go-Footer-listItem [data-value='dark'] {\n  display: initial;\n}\n[data-theme='light'] .go-Footer-listItem [data-value='light'] {\n  display: initial;\n}\n.go-Footer-toggleTheme,\n.go-Footer-keyboard {\n  margin: 0 0 0.5rem 0;\n}\n\n.go-Footer-googleLogo {\n  align-self: flex-end;\n  height: 1.5rem;\n  margin-bottom: 1.3rem;\n  text-align: right;\n}\n.go-Footer-googleLogoImg {\n  height: 1.5rem;\n  width: 4.529rem;\n}\n\n@media only screen and (min-width: 52rem) {\n  .go-Footer-listItem {\n    flex: initial;\n  }\n  .go-Footer-listItem + .go-Footer-listItem {\n    border-left: var(--border);\n  }\n  .go-Footer-toggleTheme {\n    margin: 0 0 0 -0.5rem;\n  }\n  .go-Footer-keyboard {\n    margin: 0;\n  }\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nselect:focus:not([disabled]),\ninput:focus:not([disabled]) {\n  border-color: var(--color-brand-primary);\n  -webkit-box-shadow: var(--focus-box-shadow);\n  box-shadow: var(--focus-box-shadow);\n  outline: transparent;\n  z-index: 2;\n}\n\ninput::placeholder {\n  color: var(--color-text-subtle);\n}\n\n.go-Form {\n  align-items: start;\n  display: flex;\n  flex-direction: column;\n  gap: 1rem;\n}\n\n.go-Label {\n  display: flex;\n  flex-direction: column;\n  gap: 0.5rem;\n}\n.go-Label--inline {\n  align-items: center;\n  flex-direction: row;\n}\n.go-Label legend {\n  margin-bottom: 0.5rem;\n}\n.go-Label--inline legend {\n  float: left;\n  margin-bottom: 0;\n}\n.go-Input,\n.go-Select {\n  background: var(--color-input);\n  border: var(--border);\n  border-radius: var(--border-radius);\n  color: var(--color-input-text);\n}\n.go-Input {\n  padding: 0.40625rem 0.5rem;\n}\n.go-Select {\n  -webkit-appearance: none;\n  -moz-appearance: none;\n  appearance: none;\n  background: url('/static/shared/icon/arrow_drop_down_gm_grey_24dp.svg') right no-repeat;\n  background-color: var(--color-background);\n  background-position: right center;\n  border-radius: var(--border-radius);\n  margin: 0;\n  padding: 0.34375rem 1.25rem 0.34375rem 0.5rem;\n}\n\n.go-InputGroup {\n  display: flex;\n}\n.go-InputGroup .go-Input {\n  flex: 1;\n}\n.go-InputGroup > :not(:first-child, :last-child) {\n  border-radius: 0;\n  margin-left: -0.0625rem;\n}\n.go-InputGroup > :first-child {\n  border-bottom-right-radius: 0;\n  border-top-right-radius: 0;\n}\n.go-InputGroup > :last-child {\n  border-bottom-left-radius: 0;\n  border-top-left-radius: 0;\n  margin-left: -0.0625rem;\n}\n.go-InputGroup > *:hover,\n.go-InputGroup > *:focus {\n  z-index: 1;\n}\n\n.go-ShortcutKey {\n  display: flex;\n  position: relative;\n}\n.go-ShortcutKey .go-Input {\n  flex-grow: 1;\n}\n.go-ShortcutKey::after {\n  align-self: center;\n  background-color: var(--color-background-accented);\n  border-radius: 0.5rem;\n  color: var(--gray-6);\n  content: attr(data-shortcut);\n  content: attr(data-shortcut) / attr(data-shortcut-alt);\n  display: none;\n  font-size: 0.75rem;\n  padding: 0.0625rem 0;\n  position: absolute;\n  right: 0.75rem;\n  text-align: center;\n  width: 1.5rem;\n  z-index: 1;\n}\n@media only screen and (min-width: 52rem) {\n  .go-ShortcutKey::after {\n    display: initial;\n  }\n}\n", "/*!\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-GopherMessage img {\n  display: block;\n  height: 15rem;\n  margin: 0 auto;\n  padding: 1.25rem 0;\n  width: 15rem;\n}\n.go-GopherMessage p {\n  font-weight: 600;\n  margin: auto;\n  text-align: center;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Banner {\n  background-color: var(--gray-1);\n\n  /**\n   * Only show on wide viewports so the\n   * text never wraps or gets cut off.\n   */\n  display: none;\n}\n.go-Banner-inner {\n  align-items: center;\n  display: flex;\n  justify-content: space-between;\n  margin: 0 auto;\n  max-width: 75.75rem;\n  min-height: 2.5rem;\n  padding: 0.5rem var(--gutter);\n}\n.Site--wide .go-Banner-inner {\n  max-width: 98rem;\n}\n.go-Banner--full .go-Banner-inner {\n  max-width: unset;\n}\n.go-Banner-message {\n  color: var(--white);\n  margin-right: 1.25rem;\n}\n.go-Banner-action:link,\n.go-Banner-action:visited {\n  color: var(--white);\n  text-decoration: underline;\n  white-space: nowrap;\n}\n@media only screen and (min-width: 52rem) {\n  .go-Banner {\n    display: block;\n  }\n}\n\n.go-Header {\n  background: #007d9c;\n  border-bottom: none;\n  box-shadow: 0 0.0625rem 0.125rem rgba(171, 171, 171, 0.3);\n  top: 0;\n  width: 100%;\n  z-index: 10;\n}\n.go-Header-inner {\n  margin: 0 auto;\n  max-width: 75.75rem;\n  padding: 0 var(--gutter);\n}\n.Site--wide .go-Header-inner {\n  max-width: 98rem;\n}\n.go-Header--full .go-Header-inner {\n  max-width: initial;\n}\n.go-Header-nav {\n  align-items: center;\n  display: flex;\n  height: 3.5rem;\n  justify-content: space-between;\n}\n.go-Header-rightContent {\n  align-items: center;\n  display: flex;\n  height: 100%;\n  justify-content: flex-end;\n  width: 100%;\n}\n.go-Header-rightContent form {\n  flex-grow: 1;\n}\n.go-Header-inner--dark {\n  border-bottom: none;\n  color: var(--white);\n}\n.go-Header-logo {\n  display: block;\n  height: 2rem;\n  margin-right: 2.25rem;\n  width: 5.125rem;\n}\n.go-Header-logo--hidden {\n  display: none;\n}\n.go-Header-menuItem {\n  display: none;\n}\n.go-Header-menu {\n  align-items: stretch;\n  display: flex;\n  height: 100%;\n  list-style: none;\n  margin: 0;\n  padding: 0;\n}\n@media only screen and (min-width: 65rem) {\n  .go-Header-menuItem {\n    align-items: stretch;\n    display: inline-flex;\n    flex: none;\n  }\n  .go-Header-menu {\n    justify-content: flex-end;\n  }\n  .go-Header-navOpen {\n    display: none;\n  }\n}\n.go-Header-menuItem a:link,\n.go-Header-menuItem a:visited {\n  align-items: center;\n  border-bottom: 0.1875rem solid transparent;\n  border-top: 0.1875rem solid transparent; /* To ensure the text remains centered. */\n  color: var(--gray-2);\n  display: inline-flex;\n  margin: 0 0.3125rem;\n  padding: 0 0.9375rem;\n  text-align: center;\n  text-decoration: none;\n  width: 100%;\n}\n.go-Header-menuItem--active a:link,\n.go-Header-menuItem--active a:visited {\n  border-bottom-color: var(--turq-med);\n  font-weight: bold;\n}\n.go-Header-menuItem a:hover {\n  border-bottom-color: var(--white);\n  color: var(--gray-2);\n}\n.go-NavigationDrawer-listItem a:link,\n.go-NavigationDrawer-listItem a:visited {\n  display: block;\n  margin: 0 1rem;\n  padding: 0.5rem;\n}\n.go-Header-inner--dark .go-Header-menuItem a:link,\n.go-Header-inner--dark .go-Header-menuItem a:visited {\n  color: var(--white);\n}\n\n.go-Header-navOpen {\n  background: no-repeat center/2rem url('/images/menu-24px.svg');\n  border: none;\n  height: 2.5rem;\n  margin-left: 1rem;\n  width: 2.5rem;\n}\n.go-Header-navOpen--hidden {\n  display: none;\n}\n.go-Header-navOpen--white {\n  background: no-repeat center/2rem url('/static/shared/icon/menu_gm_grey_24dp.svg');\n  filter: brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg)\n    brightness(103%) contrast(107%);\n}\n\n.go-SearchForm--expanded {\n  flex-grow: 1;\n}\n.go-SearchForm-form {\n  display: none;\n}\n.go-SearchForm-form::after {\n  right: 2.75rem;\n}\n.go-SearchForm--expanded .go-SearchForm-form {\n  display: flex;\n}\n.go-SearchForm-expandSearch {\n  appearance: none;\n  background: none;\n  font-size: 1.5rem;\n}\n.go-SearchForm--expanded .go-SearchForm-expandSearch {\n  display: none;\n}\n\n@media only screen and (min-width: 32rem) {\n  .go-Header-rightContent {\n    width: 100%;\n  }\n  .go-SearchForm {\n    flex: 1;\n  }\n  .go-SearchForm-form {\n    display: flex;\n  }\n  .go-SearchForm-expandSearch {\n    display: none;\n  }\n  .go-Header-logo--hidden {\n    display: initial;\n  }\n}\n\n.go-NavigationDrawer {\n  background: var(--white);\n  height: 100%;\n  left: auto;\n  max-width: 27rem;\n  position: fixed;\n  right: 0;\n  top: 0;\n  transform: translateX(100%);\n  transition: transform 100ms ease-in-out;\n  width: 85%;\n  z-index: 30;\n}\n@media only screen and (min-width: 65rem) {\n  .go-NavigationDrawer {\n    display: none;\n  }\n}\n.go-NavigationDrawer.is-active {\n  transform: translateX(0);\n}\n.go-NavigationDrawer-header {\n  align-items: center;\n  display: flex;\n  justify-content: space-between;\n}\n.go-NavigationDrawer-logo {\n  display: block;\n  height: 2rem;\n  margin: 1rem 1rem;\n  width: 5.125rem;\n}\n.go-NavigationDrawer-list {\n  list-style: none;\n  margin: 0;\n  padding: 0;\n}\n.go-NavigationDrawer-listItem {\n  font-size: 1.125rem;\n  margin: 0 0.5rem;\n}\n.go-NavigationDrawer-listItem--active {\n  background-color: var(--blue);\n  border-radius: 0.4rem;\n}\n.go-NavigationDrawer-scrim {\n  display: none;\n  height: 100%;\n  left: 0;\n  position: fixed;\n  top: 0;\n  width: 100%;\n  z-index: 20;\n}\n.go-NavigationDrawer.is-active + .go-NavigationDrawer-scrim {\n  background-color: var(--gray-1);\n  display: block;\n  opacity: 0.32;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Icon {\n  filter: none;\n  height: 1.125em;\n  vertical-align: text-bottom;\n  width: auto;\n}\n.go-Icon--accented {\n  filter: brightness(0) invert(45%) sepia(94%) saturate(6735%) hue-rotate(176deg) brightness(94%)\n    contrast(101%);\n}\n.go-Icon--inverted {\n  filter: brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg)\n    brightness(103%) contrast(107%);\n}\n\n[data-theme='dark'] .go-Icon:not(.go-Icon--accented) {\n  filter: brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg)\n    brightness(103%) contrast(107%);\n}\n[data-theme='dark'] .go-Icon--accented {\n  filter: brightness(0) invert(69%) sepia(46%) saturate(466%) hue-rotate(153deg) brightness(90%)\n    contrast(88%);\n}\n@media (prefers-color-scheme: dark) {\n  :root:not([data-theme='light']) .go-Icon:not(.go-Icon--accented) {\n    filter: brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg)\n      brightness(103%) contrast(107%);\n  }\n  :root:not([data-theme='light']) .go-Icon--accented {\n    filter: brightness(0) invert(57%) sepia(63%) saturate(4864%) hue-rotate(160deg) brightness(100%)\n      contrast(101%);\n  }\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Message {\n  color: var(--color-text);\n  font-size: 0.875rem;\n  line-height: 1.5rem;\n  padding: 0 var(--gutter);\n  width: 100%;\n}\n.go-Message--notice {\n  background-color: var(--color-background-info);\n}\n.go-Message--warning {\n  background-color: var(--color-background-warning);\n  color: var(--gray-1);\n}\n.go-Message--alert {\n  background-color: var(--color-background-alert);\n}\n\n.go-Message > .go-Icon {\n  vertical-align: text-top;\n}\n\n[data-theme='dark'] .go-Message--warning .go-Icon {\n  filter: none;\n}\n@media (prefers-color-scheme: dark) {\n  :root:not([data-theme='light']) .go-Message--warning .go-Icon {\n    filter: none;\n  }\n}\n", "dialog {\n  position: absolute;\n  left: 0; right: 0;\n  width: -moz-fit-content;\n  width: -webkit-fit-content;\n  width: fit-content;\n  height: -moz-fit-content;\n  height: -webkit-fit-content;\n  height: fit-content;\n  margin: auto;\n  border: solid;\n  padding: 1em;\n  background: white;\n  color: black;\n  display: block;\n}\n\ndialog:not([open]) {\n  display: none;\n}\n\ndialog + .backdrop {\n  position: fixed;\n  top: 0; right: 0; bottom: 0; left: 0;\n  background: rgba(0,0,0,0.1);\n}\n\n._dialog_overlay {\n  position: fixed;\n  top: 0; right: 0; bottom: 0; left: 0;\n}\n\ndialog.fixed {\n  position: fixed;\n  top: 50%;\n  transform: translate(0, -50%);\n}", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n@import url('../../../third_party/dialog-polyfill/dialog-polyfill.css');\n\n.go-Modal {\n  background: var(--color-background);\n  border: var(--border);\n  border-radius: var(--border-radius);\n  bottom: 0;\n  box-shadow: var(--box-shadow);\n  color: var(--color-text);\n  display: flex;\n  flex-direction: column;\n  gap: 1rem;\n  max-height: 100%;\n  max-width: 100%;\n  position: fixed;\n  top: 0;\n}\n.go-Modal > form {\n  display: contents;\n}\n.go-Modal--small {\n  width: 20rem;\n}\n.go-Modal--md {\n  width: 30rem;\n}\n.go-Modal--lg {\n  width: 40rem;\n}\n.go-Modal-header {\n  display: flex;\n  justify-content: space-between;\n}\n.go-Modal-header h2 {\n  font-size: 1.15rem;\n  line-height: 1.25rem;\n}\n.go-Modal-body {\n  flex-grow: 1;\n  min-height: 2rem;\n  min-width: 18rem;\n}\n.go-Modal-actions {\n  text-align: right;\n}\n\n/* Safari only */\n@media not all and (min-resolution: 0.001dpcm) {\n  @supports (-webkit-appearance: none) {\n    .go-Modal {\n      padding-bottom: 0;\n    }\n  }\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Tree {\n  --js-tree-height: 0;\n\n  display: flex;\n  flex-direction: column;\n}\n\n.go-Tree ul {\n  list-style: none;\n  padding-left: 0;\n}\n.go-Tree li:last-of-type {\n  padding-bottom: 0.25rem;\n}\n.go-Tree a + ul {\n  display: none;\n}\n.go-Tree a[aria-expanded='true'] + ul[role='group'] {\n  display: block;\n}\n.go-Tree a[aria-level='1'] + ul[role='group'] {\n  max-height: calc(\n    100vh - var(--js-tree-height, 0) - var(--js-sticky-header-height, 3.5rem) - 5rem\n  );\n  overflow-y: auto;\n  padding: 0.5rem 0.25rem 0 0.25rem;\n}\n.go-Tree a {\n  color: var(--color-text-subtle);\n  display: block;\n  line-height: 1.5rem;\n  overflow: hidden;\n  padding: 0.125rem 0 0.125rem 1.25rem;\n  position: relative;\n  text-overflow: ellipsis;\n  user-select: none;\n  white-space: nowrap;\n}\n.go-Tree > li > a,\n.go-Tree a[aria-level='1'] {\n  display: block;\n  font-size: 1rem;\n  font-weight: 500;\n  line-height: 2.5rem;\n  padding: 0 1rem;\n}\n.go-Tree a:focus,\n.go-Tree a:hover {\n  text-decoration: underline;\n  z-index: 1;\n}\n.go-Tree a[aria-selected='true'] {\n  color: var(--color-text);\n  font-weight: 500;\n}\n.go-Tree a[aria-level='1'][aria-selected='true'],\n.go-Tree a[aria-level='1'][aria-expanded='true'] {\n  background-color: var(--color-background-accented);\n}\n.go-Tree a[aria-level='3'][aria-expanded='true'] {\n  margin-bottom: 0.375em;\n}\n.go-Tree a[aria-level='2'] {\n  margin-bottom: 0.25rem;\n  position: relative;\n}\n.go-Tree a[aria-level='3'] {\n  padding-left: 2.5rem;\n}\n.go-Tree a[aria-level='4'] {\n  border-left: 0.125rem solid var(--color-background-accented);\n  margin-left: 2.5rem;\n  padding-left: 0.5rem;\n}\n.go-Tree a[aria-selected='true'][aria-level='2']:not([aria-expanded])::before,\n.go-Tree a[aria-selected='true'][aria-level='3']:not([aria-expanded])::before {\n  background-color: var(--color-brand-primary);\n  border-radius: 50%;\n  content: '';\n  display: block;\n  height: 0.3125rem;\n  left: 0.4688rem;\n  position: absolute;\n  top: 0.75rem;\n  width: 0.3125rem;\n}\n.go-Tree a[aria-expanded][aria-owns][aria-level='2']::before,\n.go-Tree a[aria-expanded][aria-owns][aria-level='3']::before {\n  border-bottom: 0.25rem solid transparent;\n  border-left: 0.25rem solid var(--color-border);\n  border-right: 0;\n  border-top: 0.25rem solid transparent;\n  content: '';\n  display: block;\n  height: 0;\n  left: 0.5rem;\n  position: absolute;\n  top: 0.625rem;\n  transition: transform 0.1s linear;\n  width: 0;\n}\n.go-Tree a[aria-expanded='true'][aria-level='2']::before,\n.go-Tree a[aria-expanded='true'][aria-level='3']::before {\n  transform: rotate(90deg);\n}\n.go-Tree a[aria-expanded][aria-level='3']:not([empty])::before,\n.go-Tree a[aria-selected][aria-level='3']:not([empty])::before {\n  left: 1.5rem;\n  top: 0.75rem;\n}\n.go-Tree a[aria-selected='true'][aria-level='4'] {\n  border-left: 0.125rem solid var(--color-brand-primary);\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-TabNav {\n  margin: 0 0 0.5rem 0;\n}\n.go-TabNav ul {\n  display: flex;\n  gap: 2rem;\n}\n.go-TabNav li {\n  border-bottom: 0.25rem transparent solid;\n  display: flex;\n  font-size: 1rem;\n  height: 2.375rem;\n  padding: 0 0.25rem;\n}\n.go-TabNav li[aria-current] {\n  border-color: var(--color-brand-primary);\n}\n.go-TabNav li:hover {\n  border-color: var(--color-brand-primary);\n}\n.go-TabNav a {\n  align-items: center;\n  color: var(--color-text-subtle);\n  display: inline-flex;\n}\n.go-TabNav li:hover a {\n  text-decoration: none;\n}\n.go-TabNav li[aria-current] a {\n  color: var(--color-text);\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Tooltip {\n  border-radius: var(--border-radius);\n  cursor: pointer;\n  display: inline-block;\n  position: relative;\n}\n.go-Tooltip > summary {\n  list-style: none;\n}\n.go-Tooltip > summary::-webkit-details-marker,\n.go-Tooltip > summary::marker {\n  display: none;\n}\n.go-Tooltip > summary > img {\n  vertical-align: text-bottom;\n}\n.go-Tooltip p {\n  background: var(--color-background) 80%;\n  border: var(--border);\n  border-radius: var(--border-radius);\n  color: var(--color-text);\n  font-size: 0.75rem;\n  letter-spacing: 0.01875rem;\n  line-height: 1rem;\n  padding: 0.5rem;\n  position: absolute;\n  top: 1.5rem;\n  white-space: normal;\n  width: 12rem;\n  z-index: 100;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n@import url('./reset.css');\n\n/**\n * Typography should be imported first in the list below to ensure expected\n * CSS rule inheritance on text elements.\n */\n@import url('./typography/typography.css');\n@import url('./button/button.css');\n@import url('./breadcrumb/breadcrumb.css');\n@import url('./carousel/carousel.css');\n@import url('./chip/chip.css');\n@import url('./clipboard/clipboard.css');\n@import url('./color/color.css');\n@import url('./footer/footer.css');\n@import url('./form/form.css');\n@import url('./gopher/gopher.css');\n@import url('./header/header.css');\n@import url('./icon/icon.css');\n@import url('./message/message.css');\n@import url('./modal/modal.css');\n@import url('./outline/tree.css');\n@import url('./tabnav/tabnav.css');\n@import url('./tooltip/tooltip.css');\n\n:root {\n  /* Padding at the left and right of the viewport. */\n  --gutter: 1rem;\n\n  /* Margin between containers in the grid layout. */\n  --gap: 1rem;\n\n  /* The margin placed above elements scrolled to by clicking hash links. */\n  --scroll-margin: calc(\n    var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 2rem\n  );\n\n  /* Default styles for page elements. */\n  --border: 0.0625rem solid var(--color-border);\n  --border-radius: 0.25rem;\n  --box-shadow: 0 0 0.375rem 0 rgb(0 0 0 / 25%);\n  --focus-box-shadow: 0 0 0.0625rem 0.0625rem rgba(0, 112, 210, 0.6);\n}\n\n[data-theme='dark'] {\n  --box-shadow: 0 0.3125rem 0.9375rem rgb(0 0 0 / 45%);\n}\n@media (prefers-color-scheme: dark) {\n  :root:not([data-theme='light']) {\n    --box-shadow: 0 0.3125rem 0.9375rem rgb(0 0 0 / 45%);\n  }\n}\n@media (min-width: 50rem) {\n  :root {\n    --gutter: 1.5rem;\n    --gap: 2rem;\n    --scroll-margin: calc(\n      var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 1rem\n    );\n  }\n}\n@media (min-width: 80rem) {\n  :root {\n    --gutter: 2rem;\n  }\n}\n@media (min-width: 112rem) {\n  :root {\n    --gutter: 2.5rem;\n  }\n}\n\n*:target {\n  scroll-margin-top: var(--scroll-margin);\n}\n\nbody {\n  background-color: var(--color-background);\n  display: flex;\n  flex-direction: column;\n  min-height: 100vh;\n  min-width: 23.5rem;\n\n  /**\n   * This is used to programatically detect whether overflow needs to be altered\n   * to prevent jitter when focusing within fixed elements on iOS.\n   * It also must be set to 'touch' for the fix to work.\n   */\n  -webkit-overflow-scrolling: touch;\n}\n\n.go-Container {\n  display: flex;\n  flex-direction: column;\n  flex-grow: 1;\n  height: 100%;\n  margin-bottom: 5rem;\n}\n.go-Content {\n  display: flex;\n  flex-flow: column;\n  gap: 1rem;\n  margin: 0 auto;\n  max-width: 63rem;\n  min-height: 32rem;\n  padding: 2rem var(--gutter);\n  width: 100%;\n}\n.go-Content--center {\n  justify-content: center;\n  margin: auto;\n}\n"],
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+  "sources": ["../shared/reset.css", "../shared/typography/typography.css", "../shared/button/button.css", "../shared/breadcrumb/breadcrumb.css", "../shared/carousel/carousel.css", "../shared/chip/chip.css", "../shared/clipboard/clipboard.css", "../shared/color/color.css", "../shared/footer/footer.css", "../shared/form/form.css", "../shared/gopher/gopher.css", "../shared/header/header.css", "../shared/icon/icon.css", "../shared/message/message.css", "../../third_party/dialog-polyfill/dialog-polyfill.css", "../shared/modal/modal.css", "../shared/outline/tree.css", "../shared/tabnav/tabnav.css", "../shared/tooltip/tooltip.css", "../shared/shared.css", "_modals.css"],
+  "sourcesContent": ["/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/*!\n * http://meyerweb.com/eric/tools/css/reset/\n * v2.0 | 20110126\n * License: none (public domain)\n */\n\nhtml,\nbody,\nbutton,\ndiv,\nspan,\napplet,\nobject,\niframe,\nh1,\nh2,\nh3,\nh4,\nh5,\nh6,\nhr,\ninput,\np,\nblockquote,\npre,\na,\nabbr,\nacronym,\naddress,\nbig,\ncite,\ncode,\ndel,\ndfn,\ndialog,\nem,\nimg,\nins,\nkbd,\nq,\ns,\nsamp,\nsmall,\nstrike,\nstrong,\nsub,\nsup,\ntt,\nvar,\nb,\nu,\ni,\ncenter,\ndl,\ndt,\ndd,\nol,\nul,\nli,\nfieldset,\nform,\nlabel,\nlegend,\ntable,\ncaption,\ntbody,\ntfoot,\nthead,\ntr,\nth,\ntd,\narticle,\naside,\ncanvas,\ndetails,\nembed,\nfigure,\nfigcaption,\nfooter,\nheader,\nhgroup,\nmenu,\nnav,\noutput,\nruby,\nsection,\nsummary,\ntime,\nmark,\naudio,\nvideo {\n  border: 0;\n  font: inherit;\n  font-size: 100%;\n  margin: 0;\n  padding: 0;\n  vertical-align: baseline;\n}\n\n/* HTML5 display-role reset for older browsers */\narticle,\naside,\ndetails,\nfigcaption,\nfigure,\nfooter,\nheader,\nhgroup,\nmenu,\nnav,\nsection {\n  display: block;\n}\nbody {\n  line-height: 1;\n}\nol,\nul {\n  list-style: none;\n}\nblockquote,\nq {\n  quotes: none;\n}\nblockquote::before,\nblockquote::after,\nq::before,\nq::after {\n  content: '';\n  content: none;\n}\ntable {\n  border-collapse: collapse;\n  border-spacing: 0;\n}\n\n*,\n::before,\n::after {\n  box-sizing: border-box;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nbody {\n  color: var(--color-text);\n  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif,\n    'Apple Color Emoji', 'Segoe UI Emoji';\n  font-size: 1rem;\n  line-height: normal;\n}\nh1 {\n  font-size: 1.5rem;\n}\nh2 {\n  font-size: 1.375rem;\n}\nh3 {\n  font-size: 1.25rem;\n}\nh4 {\n  font-size: 1.125rem;\n}\nh5 {\n  font-size: 1rem;\n}\nh6 {\n  font-size: 0.875rem;\n}\n\nh1,\nh2,\nh3,\nh4 {\n  font-weight: 600;\n  line-height: 1.25em;\n  word-break: break-word;\n}\nh5,\nh6 {\n  font-weight: 500;\n  line-height: 1.3em;\n  word-break: break-word;\n}\n\nhr {\n  border: none;\n  border-bottom: var(--border);\n  margin: 0;\n  width: 100%;\n}\n\np {\n  font-size: 1rem;\n  line-height: 1.5rem;\n  max-width: 60rem;\n}\nstrong {\n  font-weight: 600;\n}\n\n.go-textSubtle {\n  color: var(--color-text-subtle);\n}\n.go-textTitle {\n  font-size: 1.125rem;\n  font-weight: 600;\n  line-height: 1.25rem;\n}\n.go-textLabel {\n  font-size: 0.875rem;\n  font-weight: 600;\n  line-height: 1rem;\n}\n.go-textPagination {\n  font-size: 0.875rem;\n  line-height: 1rem;\n}\ncode,\npre,\ntextarea.code {\n  font-family: SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;\n  font-size: 0.875rem;\n  line-height: 1.5em;\n}\npre,\ntextarea.code {\n  background-color: var(--color-background-accented);\n  border: var(--border);\n  border-radius: var(--border-radius);\n  color: var(--color-text);\n  overflow-x: auto;\n  padding: 0.625rem;\n  tab-size: 4;\n  white-space: pre;\n}\n\nbutton,\ninput,\nselect,\ntextarea {\n  font: inherit;\n}\n\na,\na:link,\na:visited {\n  color: var(--color-brand-primary);\n  text-decoration: none;\n}\na:hover,\na:hover > * {\n  color: var(--color-brand-primary);\n  text-decoration: underline;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nbutton:focus:not([disabled]) {\n  border-color: var(--color-brand-primary);\n  -webkit-box-shadow: var(--focus-box-shadow);\n  box-shadow: var(--focus-box-shadow);\n  outline: transparent;\n}\n\n.go-Button {\n  align-items: center;\n  background-color: var(--color-button);\n  border: 0.0625rem solid transparent;\n  border-radius: var(--border-radius);\n  color: var(--color-button-text);\n  cursor: pointer;\n  display: inline-flex;\n  font-weight: 500;\n  gap: 0.25rem;\n}\n.go-Button:not(.go-Button--inline) {\n  padding: 0.5rem;\n}\n\n.go-Button--accented {\n  background-color: var(--color-button-accented);\n  color: var(--color-button-accented-text);\n}\n.go-Button--inverted,\n.go-Button--text,\n.go-Button--inline {\n  background-color: var(--color-button-inverted);\n  color: var(--color-button-inverted-text);\n}\n.go-Button--inline {\n  background-color: transparent;\n}\n\n.go-Button--inverted {\n  border: var(--border);\n}\n\n.go-Button:hover {\n  box-shadow: var(--focus-box-shadow);\n  filter: contrast(0.95);\n}\n.go-Button--inline:hover {\n  box-shadow: none;\n  text-decoration: underline var(--color-button-inverted-text);\n}\n.go-Button:focus {\n  filter: contrast(0.95);\n}\n.go-Button--inverted:focus {\n  border-color: var(--color-button-inverted-text);\n}\n.go-Button:active {\n  box-shadow: none;\n  filter: contrast(0.85);\n}\n\n.go-Button:disabled {\n  background-color: var(--color-button-disabled);\n  box-shadow: none;\n  color: var(--color-button-text-disabled);\n  cursor: initial;\n  filter: none;\n  text-decoration: none;\n}\n.go-Button--accented:disabled {\n  background-color: var(--color-button-accented-disabled);\n  color: var(--color-button-accented-text-disabled);\n}\n.go-Button--inverted:disabled,\n.go-Button--text:disabled,\n.go-Button--inline:disabled {\n  background-color: var(--color-button-inverted-disabled);\n  color: var(--color-button-inverted-text-disabled);\n}\n.go-Button--inline:disabled {\n  background-color: transparent;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Breadcrumb ol {\n  line-height: 1.5rem;\n  white-space: initial;\n}\n.go-Breadcrumb li {\n  align-items: center;\n  color: var(--color-text-subtle);\n  display: inline-flex;\n  font-size: 0.875rem;\n}\n.go-Breadcrumb li:not(:last-child)::after {\n  content: '>';\n  padding: 0 0.5rem;\n}\n.go-Breadcrumb li:last-child > a {\n  color: var(--color-text-subtle);\n}\n.go-Breadcrumb li > .go-Clipboard {\n  margin: 0 0.5rem;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Carousel {\n  align-items: center;\n  display: flex;\n  flex-direction: column;\n  position: relative;\n  text-align: center;\n}\n.go-Carousel-slide {\n  margin: 0.5rem 3rem;\n}\n.go-Carousel-slide[aria-hidden] {\n  display: none;\n}\n.go-Carousel-prevSlide {\n  left: 0;\n}\n.go-Carousel-nextSlide {\n  right: 0;\n}\n.go-Carousel-prevSlide,\n.go-Carousel-nextSlide {\n  background-color: transparent;\n  border-radius: var(--border-radius);\n  font-size: 1.5rem;\n  height: 2.75rem;\n  margin-top: -1.375rem;\n  opacity: 0;\n  position: absolute;\n  top: 50%;\n  width: 2.75rem;\n}\n.go-Carousel-prevSlide:hover,\n.go-Carousel-nextSlide:hover {\n  background-color: var(--color-background-accented);\n  cursor: pointer;\n}\n.go-Carousel:hover .go-Carousel-prevSlide,\n.go-Carousel:hover .go-Carousel-nextSlide,\n.go-Carousel:focus-within .go-Carousel-prevSlide,\n.go-Carousel:focus-within .go-Carousel-nextSlide {\n  opacity: 1;\n}\n.go-Carousel-dots {\n  display: flex;\n  font-size: 0.4375rem;\n  gap: 0.5rem;\n}\n.go-Carousel-dot {\n  background-color: var(--color-border);\n  border-radius: 2rem;\n  height: 0.4375rem;\n  width: 0.4375rem;\n}\n.go-Carousel-dot--active,\n.go-Carousel-dot:hover {\n  background-color: var(--color-text-subtle);\n}\n.go-Carousel-obscured {\n  border: 0;\n  clip: rect(0 0 0 0);\n  height: 0.0625rem;\n  margin: -0.0625rem;\n  overflow: hidden;\n  padding: 0;\n  position: absolute;\n  width: 0.0625rem;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Chip {\n  background: var(--color-button);\n  border: 0.0625rem solid var(--color-button);\n  border-radius: 1.25rem;\n  color: var(--color-button-text);\n  font-size: 0.75rem;\n  padding: 0.125rem 0.625rem;\n}\n.go-Chip--accented {\n  background: var(--color-button-accented);\n  border: 0.0625rem solid var(--color-button-accented);\n  color: var(--color-button-accented-text);\n}\n.go-Chip--inverted {\n  background: var(--color-button-inverted);\n  border: var(--border);\n  color: var(--color-text);\n}\n.go-Chip--highlighted {\n  background: var(--color-background-highlighted-link);\n  border-color: var(--color-background-highlighted-link);\n  color: var(--color-brand-primary);\n}\n.go-Chip--alert {\n  background: var(--pink);\n  border: 0.0625rem solid var(--pink);\n  color: var(--color-text-inverted);\n}\n.go-Chip--vuln {\n  background: var(--pink-light);\n  border: 0.0625rem solid var(--pink-light);\n  color: var(--color-text-inverted);\n}\n.go-Chip--subtle {\n  background-color: var(--color-background-accented);\n  border-color: transparent;\n  color: var(--color-text-subtle);\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Clipboard {\n  position: relative;\n}\n.go-Clipboard::before {\n  background-color: var(--color-background-inverted);\n  border-radius: var(--border-radius);\n  color: var(--color-text-inverted);\n  content: attr(data-tooltip);\n  display: block;\n  font-size: 0.9em;\n  left: calc(100% + 0.125rem);\n  padding: 0.25rem 0.3rem;\n  position: absolute;\n  text-transform: uppercase;\n  top: 0.125rem;\n  white-space: nowrap;\n  z-index: 1000;\n}\n.go-Clipboard::after {\n  border-bottom: 0.25rem solid transparent;\n  border-left: 0;\n  border-right: 0.25rem solid var(--color-background-inverted);\n  border-top: 0.25rem solid transparent;\n  content: '';\n  display: block;\n  position: absolute;\n  right: -0.125rem;\n  top: 0.5625rem;\n  z-index: 1000;\n}\n.go-Clipboard:not([data-tooltip])::before,\n.go-Clipboard:not([data-tooltip])::after,\n.go-Clipboard[data-tooltip='']::before,\n.go-Clipboard[data-tooltip='']::after {\n  display: none;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n:root {\n  /* Colors */\n  --gray-1: #202224;\n  --gray-2: #3e4042;\n  --gray-3: #555759;\n  --gray-4: #6e7072;\n  --gray-5: #848688;\n  --gray-6: #aaacae;\n  --gray-7: #c6c8ca;\n  --gray-8: #dcdee0;\n  --gray-9: #f0f1f2;\n  --gray-10: #f8f8f8;\n  --turq-light: #5dc9e2;\n  --turq-med: #50b7e0;\n  --turq-dark: #007d9c;\n  --blue: #bfeaf4;\n  --blue-light: #f2fafd;\n  --black: #000;\n  --green: #3a6e11;\n  --green-light: #5fda64;\n  --pink: #ce3262;\n  --pink-light: #fdecf1;\n  --purple: #542c7d;\n  --slate: #253443; /* Footer background. */\n  --white: #fff;\n  --yellow: #fddd00;\n  --yellow-light: #fff8cc;\n\n  /* Color Intents */\n  --color-brand-primary: var(--turq-dark);\n  --color-background: var(--white);\n  --color-background-inverted: var(--slate);\n  --color-background-accented: var(--gray-10);\n  --color-background-highlighted: var(--blue);\n  --color-background-highlighted-link: var(--blue-light);\n  --color-background-info: var(--gray-9);\n  --color-background-warning: var(--yellow-light);\n  --color-background-alert: var(--pink-light);\n  --color-border: var(--gray-7);\n  --color-text: var(--gray-1);\n  --color-text-subtle: var(--gray-4);\n  --color-text-inverted: var(--white);\n  --color-code-comment: var(--green);\n\n  /* Interactive Colors */\n  --color-input: var(--color-background);\n  --color-input-text: var(--color-text);\n  --color-button: var(--turq-dark);\n  --color-button-disabled: var(--gray-9);\n  --color-button-text: var(--white);\n  --color-button-text-disabled: var(--gray-3);\n  --color-button-inverted: var(--color-background);\n  --color-button-inverted-disabled: var(--color-background);\n  --color-button-inverted-text: var(--color-brand-primary);\n  --color-button-inverted-text-disabled: var(--color-text-subtle);\n  --color-button-accented: var(--yellow);\n  --color-button-accented-disabled: var(--gray-9);\n  --color-button-accented-text: var(--gray-1);\n  --color-button-accented-text-disabled: var(--gray-3);\n}\n\n[data-theme='dark'] {\n  --color-brand-primary: var(--turq-med);\n  --color-background: var(--gray-1);\n  --color-background-accented: var(--gray-2);\n  --color-background-highlighted: var(--gray-2);\n  --color-background-highlighted-link: var(--gray-2);\n  --color-background-info: var(--gray-3);\n  --color-background-warning: var(--yellow);\n  --color-background-alert: var(--pink);\n  --color-border: var(--gray-4);\n  --color-text: var(--gray-9);\n  --color-text-subtle: var(--gray-7);\n  --color-code-comment: var(--green-light);\n}\n@media (prefers-color-scheme: dark) {\n  :root:not([data-theme='light']) {\n    --color-brand-primary: var(--turq-med);\n    --color-background: var(--gray-1);\n    --color-background-accented: var(--gray-2);\n    --color-background-highlighted: var(--gray-2);\n    --color-background-highlighted-link: var(--gray-2);\n    --color-background-info: var(--gray-3);\n    --color-background-warning: var(--yellow);\n    --color-background-alert: var(--pink);\n    --color-border: var(--gray-4);\n    --color-text: var(--gray-9);\n    --color-text-subtle: var(--gray-7);\n    --color-code-comment: var(--green-light);\n  }\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Footer {\n  background-color: var(--color-background-inverted);\n  color: var(--color-text-inverted);\n  font-size: 0.875rem;\n  width: 100%;\n}\n.go-Footer-links {\n  display: flex;\n  flex-wrap: wrap;\n  justify-content: space-between;\n  margin: auto;\n  max-width: 75.75rem;\n  padding: 2rem 1.5rem 2.625rem 1.5rem;\n}\n.go-Footer-linkColumn {\n  flex: 0 0 9.5rem;\n}\n.go-Footer .go-Footer-link {\n  color: var(--color-text-inverted);\n  display: flex;\n  flex: 1;\n  font-size: 0.875rem;\n  line-height: 2rem;\n}\n.go-Footer .go-Footer-link--primary {\n  font-size: 1.125rem;\n  line-height: 1.75rem;\n  margin-bottom: 0.5rem;\n  margin-top: 0.75rem;\n}\n.go-Footer-bottom {\n  align-items: center;\n  border-top: var(--border);\n  display: flex;\n  margin: 0 1.5rem;\n  min-height: 4.125rem;\n}\n.go-Footer-gopher {\n  align-self: flex-end;\n  height: 3.147rem;\n  width: 5rem;\n}\n.go-Footer-listRow {\n  display: flex;\n  flex: 1;\n  flex-wrap: wrap;\n  list-style: none;\n  margin: 0;\n  padding: 0;\n  text-align: center;\n}\n.go-Footer-listItem {\n  align-items: center;\n  display: flex;\n  flex: 1 100%;\n  justify-content: center;\n  margin: 0.4rem 0;\n  padding: 0 1rem;\n}\n.go-Footer-listItem a:link,\n.go-Footer-listItem a:visited {\n  color: var(--color-text-inverted);\n}\n.go-Footer-listItem .go-Button--text {\n  background-color: transparent;\n  font-size: 1rem;\n}\n.go-Footer-listItem [data-value] {\n  display: none;\n}\n\n[data-theme='auto'] .go-Footer-listItem [data-value='auto'],\n:root:not([data-theme]) .go-Footer-listItem [data-value='auto'] {\n  display: initial;\n}\n[data-theme='dark'] .go-Footer-listItem [data-value='dark'] {\n  display: initial;\n}\n[data-theme='light'] .go-Footer-listItem [data-value='light'] {\n  display: initial;\n}\n.go-Footer-toggleTheme,\n.go-Footer-keyboard {\n  margin: 0 0 0.5rem 0;\n}\n\n.go-Footer-googleLogo {\n  align-self: flex-end;\n  height: 1.5rem;\n  margin-bottom: 1.3rem;\n  text-align: right;\n}\n.go-Footer-googleLogoImg {\n  height: 1.5rem;\n  width: 4.529rem;\n}\n\n@media only screen and (min-width: 52rem) {\n  .go-Footer-listItem {\n    flex: initial;\n  }\n  .go-Footer-listItem + .go-Footer-listItem {\n    border-left: var(--border);\n  }\n  .go-Footer-toggleTheme {\n    margin: 0 0 0 -0.5rem;\n  }\n  .go-Footer-keyboard {\n    margin: 0;\n  }\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nselect:focus:not([disabled]),\ninput:focus:not([disabled]) {\n  border-color: var(--color-brand-primary);\n  -webkit-box-shadow: var(--focus-box-shadow);\n  box-shadow: var(--focus-box-shadow);\n  outline: transparent;\n  z-index: 2;\n}\n\ninput::placeholder {\n  color: var(--color-text-subtle);\n}\n\n.go-Form {\n  align-items: start;\n  display: flex;\n  flex-direction: column;\n  gap: 1rem;\n}\n\n.go-Label {\n  display: flex;\n  flex-direction: column;\n  gap: 0.5rem;\n}\n.go-Label--inline {\n  align-items: center;\n  flex-direction: row;\n}\n.go-Label legend {\n  margin-bottom: 0.5rem;\n}\n.go-Label--inline legend {\n  float: left;\n  margin-bottom: 0;\n}\n.go-Input,\n.go-Select {\n  background: var(--color-input);\n  border: var(--border);\n  border-radius: var(--border-radius);\n  color: var(--color-input-text);\n}\n.go-Input {\n  padding: 0.40625rem 0.5rem;\n}\n.go-Select {\n  -webkit-appearance: none;\n  -moz-appearance: none;\n  appearance: none;\n  background: url('/static/shared/icon/arrow_drop_down_gm_grey_24dp.svg') right no-repeat;\n  background-color: var(--color-background);\n  background-position: right center;\n  border-radius: var(--border-radius);\n  margin: 0;\n  padding: 0.34375rem 1.25rem 0.34375rem 0.5rem;\n}\n\n.go-InputGroup {\n  display: flex;\n}\n.go-InputGroup .go-Input {\n  flex: 1;\n}\n.go-InputGroup > :not(:first-child, :last-child) {\n  border-radius: 0;\n  margin-left: -0.0625rem;\n}\n.go-InputGroup > :first-child {\n  border-bottom-right-radius: 0;\n  border-top-right-radius: 0;\n}\n.go-InputGroup > :last-child {\n  border-bottom-left-radius: 0;\n  border-top-left-radius: 0;\n  margin-left: -0.0625rem;\n}\n.go-InputGroup > *:hover,\n.go-InputGroup > *:focus {\n  z-index: 1;\n}\n\n.go-ShortcutKey {\n  display: flex;\n  position: relative;\n}\n.go-ShortcutKey .go-Input {\n  flex-grow: 1;\n}\n.go-ShortcutKey::after {\n  align-self: center;\n  background-color: var(--color-background-accented);\n  border-radius: 0.5rem;\n  color: var(--gray-6);\n  content: attr(data-shortcut);\n  content: attr(data-shortcut) / attr(data-shortcut-alt);\n  display: none;\n  font-size: 0.75rem;\n  padding: 0.0625rem 0;\n  position: absolute;\n  right: 0.75rem;\n  text-align: center;\n  width: 1.5rem;\n  z-index: 1;\n}\n@media only screen and (min-width: 52rem) {\n  .go-ShortcutKey::after {\n    display: initial;\n  }\n}\n", "/*!\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-GopherMessage img {\n  display: block;\n  height: 15rem;\n  margin: 0 auto;\n  padding: 1.25rem 0;\n  width: 15rem;\n}\n.go-GopherMessage p {\n  font-weight: 600;\n  margin: auto;\n  text-align: center;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Banner {\n  background-color: var(--gray-1);\n\n  /**\n   * Only show on wide viewports so the\n   * text never wraps or gets cut off.\n   */\n  display: none;\n}\n.go-Banner-inner {\n  align-items: center;\n  display: flex;\n  justify-content: space-between;\n  margin: 0 auto;\n  max-width: 75.75rem;\n  min-height: 2.5rem;\n  padding: 0.5rem var(--gutter);\n}\n.Site--wide .go-Banner-inner {\n  max-width: 98rem;\n}\n.go-Banner--full .go-Banner-inner {\n  max-width: unset;\n}\n.go-Banner-message {\n  color: var(--white);\n  margin-right: 1.25rem;\n}\n.go-Banner-action:link,\n.go-Banner-action:visited {\n  color: var(--white);\n  text-decoration: underline;\n  white-space: nowrap;\n}\n@media only screen and (min-width: 52rem) {\n  .go-Banner {\n    display: block;\n  }\n}\n\n.go-Header {\n  background: #007d9c;\n  border-bottom: none;\n  box-shadow: 0 0.0625rem 0.125rem rgba(171, 171, 171, 0.3);\n  top: 0;\n  width: 100%;\n  z-index: 10;\n}\n.go-Header-inner {\n  margin: 0 auto;\n  max-width: 75.75rem;\n  padding: 0 var(--gutter);\n}\n.Site--wide .go-Header-inner {\n  max-width: 98rem;\n}\n.go-Header--full .go-Header-inner {\n  max-width: initial;\n}\n.go-Header-nav {\n  align-items: center;\n  display: flex;\n  height: 3.5rem;\n  justify-content: space-between;\n}\n.go-Header-rightContent {\n  align-items: center;\n  display: flex;\n  height: 100%;\n  justify-content: flex-end;\n  width: 100%;\n}\n.go-Header-rightContent form {\n  flex-grow: 1;\n}\n.go-Header-inner--dark {\n  border-bottom: none;\n  color: var(--white);\n}\n.go-Header-logo {\n  display: block;\n  height: 2rem;\n  margin-right: 2.25rem;\n  width: 5.125rem;\n}\n.go-Header-logo--hidden {\n  display: none;\n}\n.go-Header-menuItem {\n  display: none;\n}\n.go-Header-menu {\n  align-items: stretch;\n  display: flex;\n  height: 100%;\n  list-style: none;\n  margin: 0;\n  padding: 0;\n}\n@media only screen and (min-width: 65rem) {\n  .go-Header-menuItem {\n    align-items: stretch;\n    display: inline-flex;\n    flex: none;\n  }\n  .go-Header-menu {\n    justify-content: flex-end;\n  }\n  .go-Header-navOpen {\n    display: none;\n  }\n}\n.go-Header-menuItem a:link,\n.go-Header-menuItem a:visited {\n  align-items: center;\n  border-bottom: 0.1875rem solid transparent;\n  border-top: 0.1875rem solid transparent; /* To ensure the text remains centered. */\n  color: var(--gray-2);\n  display: inline-flex;\n  margin: 0 0.3125rem;\n  padding: 0 0.9375rem;\n  text-align: center;\n  text-decoration: none;\n  width: 100%;\n}\n.go-Header-menuItem--active a:link,\n.go-Header-menuItem--active a:visited {\n  border-bottom-color: var(--turq-med);\n  font-weight: bold;\n}\n.go-Header-menuItem a:hover {\n  border-bottom-color: var(--white);\n  color: var(--gray-2);\n}\n.go-NavigationDrawer-listItem a:link,\n.go-NavigationDrawer-listItem a:visited {\n  display: block;\n  margin: 0 1rem;\n  padding: 0.5rem;\n}\n.go-Header-inner--dark .go-Header-menuItem a:link,\n.go-Header-inner--dark .go-Header-menuItem a:visited {\n  color: var(--white);\n}\n\n.go-Header-navOpen {\n  background: no-repeat center/2rem url('/images/menu-24px.svg');\n  border: none;\n  height: 2.5rem;\n  margin-left: 1rem;\n  width: 2.5rem;\n}\n.go-Header-navOpen--hidden {\n  display: none;\n}\n.go-Header-navOpen--white {\n  background: no-repeat center/2rem url('/static/shared/icon/menu_gm_grey_24dp.svg');\n  filter: brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg)\n    brightness(103%) contrast(107%);\n}\n\n.go-SearchForm--expanded {\n  flex-grow: 1;\n}\n.go-SearchForm-form {\n  display: none;\n}\n.go-SearchForm-form::after {\n  right: 2.75rem;\n}\n.go-SearchForm--expanded .go-SearchForm-form {\n  display: flex;\n}\n.go-SearchForm-expandSearch {\n  appearance: none;\n  background: none;\n  font-size: 1.5rem;\n}\n.go-SearchForm--expanded .go-SearchForm-expandSearch {\n  display: none;\n}\n\n@media only screen and (min-width: 32rem) {\n  .go-Header-rightContent {\n    width: 100%;\n  }\n  .go-SearchForm {\n    flex: 1;\n  }\n  .go-SearchForm-form {\n    display: flex;\n  }\n  .go-SearchForm-expandSearch {\n    display: none;\n  }\n  .go-Header-logo--hidden {\n    display: initial;\n  }\n}\n\n.go-NavigationDrawer {\n  background: var(--white);\n  height: 100%;\n  left: auto;\n  max-width: 27rem;\n  position: fixed;\n  right: 0;\n  top: 0;\n  transform: translateX(100%);\n  transition: transform 100ms ease-in-out;\n  width: 85%;\n  z-index: 30;\n}\n@media only screen and (min-width: 65rem) {\n  .go-NavigationDrawer {\n    display: none;\n  }\n}\n.go-NavigationDrawer.is-active {\n  transform: translateX(0);\n}\n.go-NavigationDrawer-header {\n  align-items: center;\n  display: flex;\n  justify-content: space-between;\n}\n.go-NavigationDrawer-logo {\n  display: block;\n  height: 2rem;\n  margin: 1rem 1rem;\n  width: 5.125rem;\n}\n.go-NavigationDrawer-list {\n  list-style: none;\n  margin: 0;\n  padding: 0;\n}\n.go-NavigationDrawer-listItem {\n  font-size: 1.125rem;\n  margin: 0 0.5rem;\n}\n.go-NavigationDrawer-listItem--active {\n  background-color: var(--blue);\n  border-radius: 0.4rem;\n}\n.go-NavigationDrawer-scrim {\n  display: none;\n  height: 100%;\n  left: 0;\n  position: fixed;\n  top: 0;\n  width: 100%;\n  z-index: 20;\n}\n.go-NavigationDrawer.is-active + .go-NavigationDrawer-scrim {\n  background-color: var(--gray-1);\n  display: block;\n  opacity: 0.32;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Icon {\n  filter: none;\n  height: 1.125em;\n  vertical-align: text-bottom;\n  width: auto;\n}\n.go-Icon--accented {\n  filter: brightness(0) invert(45%) sepia(94%) saturate(6735%) hue-rotate(176deg) brightness(94%)\n    contrast(101%);\n}\n.go-Icon--inverted {\n  filter: brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg)\n    brightness(103%) contrast(107%);\n}\n\n[data-theme='dark'] .go-Icon:not(.go-Icon--accented) {\n  filter: brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg)\n    brightness(103%) contrast(107%);\n}\n[data-theme='dark'] .go-Icon--accented {\n  filter: brightness(0) invert(69%) sepia(46%) saturate(466%) hue-rotate(153deg) brightness(90%)\n    contrast(88%);\n}\n@media (prefers-color-scheme: dark) {\n  :root:not([data-theme='light']) .go-Icon:not(.go-Icon--accented) {\n    filter: brightness(0) saturate(100%) invert(100%) sepia(97%) saturate(13%) hue-rotate(245deg)\n      brightness(103%) contrast(107%);\n  }\n  :root:not([data-theme='light']) .go-Icon--accented {\n    filter: brightness(0) invert(57%) sepia(63%) saturate(4864%) hue-rotate(160deg) brightness(100%)\n      contrast(101%);\n  }\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Message {\n  color: var(--color-text);\n  font-size: 0.875rem;\n  line-height: 1.5rem;\n  padding: 0 var(--gutter);\n  width: 100%;\n}\n.go-Message--notice {\n  background-color: var(--color-background-info);\n}\n.go-Message--warning {\n  background-color: var(--color-background-warning);\n  color: var(--gray-1);\n}\n.go-Message--alert {\n  background-color: var(--color-background-alert);\n}\n\n.go-Message > .go-Icon {\n  vertical-align: text-top;\n}\n\n[data-theme='dark'] .go-Message--warning .go-Icon {\n  filter: none;\n}\n@media (prefers-color-scheme: dark) {\n  :root:not([data-theme='light']) .go-Message--warning .go-Icon {\n    filter: none;\n  }\n}\n", "dialog {\n  position: absolute;\n  left: 0; right: 0;\n  width: -moz-fit-content;\n  width: -webkit-fit-content;\n  width: fit-content;\n  height: -moz-fit-content;\n  height: -webkit-fit-content;\n  height: fit-content;\n  margin: auto;\n  border: solid;\n  padding: 1em;\n  background: white;\n  color: black;\n  display: block;\n}\n\ndialog:not([open]) {\n  display: none;\n}\n\ndialog + .backdrop {\n  position: fixed;\n  top: 0; right: 0; bottom: 0; left: 0;\n  background: rgba(0,0,0,0.1);\n}\n\n._dialog_overlay {\n  position: fixed;\n  top: 0; right: 0; bottom: 0; left: 0;\n}\n\ndialog.fixed {\n  position: fixed;\n  top: 50%;\n  transform: translate(0, -50%);\n}", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n@import url('../../../third_party/dialog-polyfill/dialog-polyfill.css');\n\n.go-Modal {\n  background: var(--color-background);\n  border: var(--border);\n  border-radius: var(--border-radius);\n  bottom: 0;\n  box-shadow: var(--box-shadow);\n  color: var(--color-text);\n  display: flex;\n  flex-direction: column;\n  gap: 1rem;\n  max-height: 100%;\n  max-width: 100%;\n  position: fixed;\n  top: 0;\n}\n.go-Modal > form {\n  display: contents;\n}\n.go-Modal--small {\n  width: 20rem;\n}\n.go-Modal--md {\n  width: 30rem;\n}\n.go-Modal--lg {\n  width: 40rem;\n}\n.go-Modal-header {\n  display: flex;\n  justify-content: space-between;\n}\n.go-Modal-header h2 {\n  font-size: 1.15rem;\n  line-height: 1.25rem;\n}\n.go-Modal-body {\n  flex-grow: 1;\n  min-height: 2rem;\n  min-width: 18rem;\n}\n.go-Modal-actions {\n  text-align: right;\n}\n\n/* Safari only */\n@media not all and (min-resolution: 0.001dpcm) {\n  @supports (-webkit-appearance: none) {\n    .go-Modal {\n      padding-bottom: 0;\n    }\n  }\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Tree {\n  --js-tree-height: 0;\n\n  display: flex;\n  flex-direction: column;\n}\n\n.go-Tree ul {\n  list-style: none;\n  padding-left: 0;\n}\n.go-Tree li:last-of-type {\n  padding-bottom: 0.25rem;\n}\n.go-Tree a + ul {\n  display: none;\n}\n.go-Tree a[aria-expanded='true'] + ul[role='group'] {\n  display: block;\n}\n.go-Tree a[aria-level='1'] + ul[role='group'] {\n  max-height: calc(\n    100vh - var(--js-tree-height, 0) - var(--js-sticky-header-height, 3.5rem) - 5rem\n  );\n  overflow-y: auto;\n  padding: 0.5rem 0.25rem 0 0.25rem;\n}\n.go-Tree a {\n  color: var(--color-text-subtle);\n  display: block;\n  line-height: 1.5rem;\n  overflow: hidden;\n  padding: 0.125rem 0 0.125rem 1.25rem;\n  position: relative;\n  text-overflow: ellipsis;\n  user-select: none;\n  white-space: nowrap;\n}\n.go-Tree > li > a,\n.go-Tree a[aria-level='1'] {\n  display: block;\n  font-size: 1rem;\n  font-weight: 500;\n  line-height: 2.5rem;\n  padding: 0 1rem;\n}\n.go-Tree a:focus,\n.go-Tree a:hover {\n  text-decoration: underline;\n  z-index: 1;\n}\n.go-Tree a[aria-selected='true'] {\n  color: var(--color-text);\n  font-weight: 500;\n}\n.go-Tree a[aria-level='1'][aria-selected='true'],\n.go-Tree a[aria-level='1'][aria-expanded='true'] {\n  background-color: var(--color-background-accented);\n}\n.go-Tree a[aria-level='3'][aria-expanded='true'] {\n  margin-bottom: 0.375em;\n}\n.go-Tree a[aria-level='2'] {\n  margin-bottom: 0.25rem;\n  position: relative;\n}\n.go-Tree a[aria-level='3'] {\n  padding-left: 2.5rem;\n}\n.go-Tree a[aria-level='4'] {\n  border-left: 0.125rem solid var(--color-background-accented);\n  margin-left: 2.5rem;\n  padding-left: 0.5rem;\n}\n.go-Tree a[aria-selected='true'][aria-level='2']:not([aria-expanded])::before,\n.go-Tree a[aria-selected='true'][aria-level='3']:not([aria-expanded])::before {\n  background-color: var(--color-brand-primary);\n  border-radius: 50%;\n  content: '';\n  display: block;\n  height: 0.3125rem;\n  left: 0.4688rem;\n  position: absolute;\n  top: 0.75rem;\n  width: 0.3125rem;\n}\n.go-Tree a[aria-expanded][aria-owns][aria-level='2']::before,\n.go-Tree a[aria-expanded][aria-owns][aria-level='3']::before {\n  border-bottom: 0.25rem solid transparent;\n  border-left: 0.25rem solid var(--color-border);\n  border-right: 0;\n  border-top: 0.25rem solid transparent;\n  content: '';\n  display: block;\n  height: 0;\n  left: 0.5rem;\n  position: absolute;\n  top: 0.625rem;\n  transition: transform 0.1s linear;\n  width: 0;\n}\n.go-Tree a[aria-expanded='true'][aria-level='2']::before,\n.go-Tree a[aria-expanded='true'][aria-level='3']::before {\n  transform: rotate(90deg);\n}\n.go-Tree a[aria-expanded][aria-level='3']:not([empty])::before,\n.go-Tree a[aria-selected][aria-level='3']:not([empty])::before {\n  left: 1.5rem;\n  top: 0.75rem;\n}\n.go-Tree a[aria-selected='true'][aria-level='4'] {\n  border-left: 0.125rem solid var(--color-brand-primary);\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-TabNav {\n  margin: 0 0 0.5rem 0;\n}\n.go-TabNav ul {\n  display: flex;\n  gap: 2rem;\n}\n.go-TabNav li {\n  border-bottom: 0.25rem transparent solid;\n  display: flex;\n  font-size: 1rem;\n  height: 2.375rem;\n  padding: 0 0.25rem;\n}\n.go-TabNav li[aria-current] {\n  border-color: var(--color-brand-primary);\n}\n.go-TabNav li:hover {\n  border-color: var(--color-brand-primary);\n}\n.go-TabNav a {\n  align-items: center;\n  color: var(--color-text-subtle);\n  display: inline-flex;\n}\n.go-TabNav li:hover a {\n  text-decoration: none;\n}\n.go-TabNav li[aria-current] a {\n  color: var(--color-text);\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.go-Tooltip {\n  border-radius: var(--border-radius);\n  cursor: pointer;\n  display: inline-block;\n  position: relative;\n}\n.go-Tooltip > summary {\n  list-style: none;\n}\n.go-Tooltip > summary::-webkit-details-marker,\n.go-Tooltip > summary::marker {\n  display: none;\n}\n.go-Tooltip > summary > img {\n  vertical-align: text-bottom;\n}\n.go-Tooltip p {\n  background: var(--color-background) 80%;\n  border: var(--border);\n  border-radius: var(--border-radius);\n  color: var(--color-text);\n  font-size: 0.75rem;\n  letter-spacing: 0.01875rem;\n  line-height: 1rem;\n  padding: 0.5rem;\n  position: absolute;\n  top: 1.5rem;\n  white-space: normal;\n  width: 12rem;\n  z-index: 100;\n}\n", "/*!\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n@import url('./reset.css');\n\n/**\n * Typography should be imported first in the list below to ensure expected\n * CSS rule inheritance on text elements.\n */\n@import url('./typography/typography.css');\n@import url('./button/button.css');\n@import url('./breadcrumb/breadcrumb.css');\n@import url('./carousel/carousel.css');\n@import url('./chip/chip.css');\n@import url('./clipboard/clipboard.css');\n@import url('./color/color.css');\n@import url('./footer/footer.css');\n@import url('./form/form.css');\n@import url('./gopher/gopher.css');\n@import url('./header/header.css');\n@import url('./icon/icon.css');\n@import url('./message/message.css');\n@import url('./modal/modal.css');\n@import url('./outline/tree.css');\n@import url('./tabnav/tabnav.css');\n@import url('./tooltip/tooltip.css');\n\n:root {\n  /* Padding at the left and right of the viewport. */\n  --gutter: 1rem;\n\n  /* Margin between containers in the grid layout. */\n  --gap: 1rem;\n\n  /* The margin placed above elements scrolled to by clicking hash links. */\n  --scroll-margin: calc(\n    var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 2rem\n  );\n\n  /* Default styles for page elements. */\n  --border: 0.0625rem solid var(--color-border);\n  --border-radius: 0.25rem;\n  --box-shadow: 0 0 0.375rem 0 rgb(0 0 0 / 25%);\n  --focus-box-shadow: 0 0 0.0625rem 0.0625rem rgba(0, 112, 210, 0.6);\n}\n\n[data-theme='dark'] {\n  --box-shadow: 0 0.3125rem 0.9375rem rgb(0 0 0 / 45%);\n}\n@media (prefers-color-scheme: dark) {\n  :root:not([data-theme='light']) {\n    --box-shadow: 0 0.3125rem 0.9375rem rgb(0 0 0 / 45%);\n  }\n}\n@media (min-width: 50rem) {\n  :root {\n    --gutter: 1.5rem;\n    --gap: 2rem;\n    --scroll-margin: calc(\n      var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 1rem\n    );\n  }\n}\n@media (min-width: 80rem) {\n  :root {\n    --gutter: 2rem;\n  }\n}\n@media (min-width: 112rem) {\n  :root {\n    --gutter: 2.5rem;\n  }\n}\n\n*:target {\n  scroll-margin-top: var(--scroll-margin);\n}\n\nbody {\n  background-color: var(--color-background);\n  display: flex;\n  flex-direction: column;\n  min-height: 100vh;\n  min-width: 23.5rem;\n\n  /**\n   * This is used to programatically detect whether overflow needs to be altered\n   * to prevent jitter when focusing within fixed elements on iOS.\n   * It also must be set to 'touch' for the fix to work.\n   */\n  -webkit-overflow-scrolling: touch;\n}\n\n.go-Container {\n  display: flex;\n  flex-direction: column;\n  flex-grow: 1;\n  height: 100%;\n  margin-bottom: 5rem;\n}\n.go-Content {\n  display: flex;\n  flex-flow: column;\n  gap: 1rem;\n  margin: 0 auto;\n  max-width: 63rem;\n  min-height: 32rem;\n  padding: 2rem var(--gutter);\n  width: 100%;\n}\n.go-Content--center {\n  justify-content: center;\n  margin: auto;\n}\n", "/*!\n* Copyright 2021 The Go Authors. All rights reserved.\n* Use of this source code is governed by a BSD-style\n* license that can be found in the LICENSE file.\n*/\n\n.JumpDialog-body {\n  height: 12rem;\n  overflow-y: auto;\n}\n.JumpDialog-list {\n  display: flex;\n  flex-direction: column;\n}\n.JumpDialog-input {\n  width: 100%;\n}\n.JumpDialog a {\n  padding: 0.25rem;\n  text-decoration: none;\n}\n.JumpDialog .JumpDialog-active {\n  background-color: var(--color-brand-primary);\n  color: var(--white);\n}\n\n.ShortcutsDialog-key {\n  text-align: right;\n}\n.ShortcutsDialog table {\n  padding: 0 1rem;\n}\n\n.ShortcutsDialog td {\n  padding-bottom: 0.5rem;\n  padding-left: 0.5rem;\n}\n\n.ShortcutsDialog-theme span {\n  display: none;\n}\n[data-theme='light'] .ShortcutsDialog-themeLight {\n  display: initial;\n}\n[data-theme='dark'] .ShortcutsDialog-themeDark {\n  display: initial;\n}\n[data-theme=''] .ShortcutsDialog-themeAuto,\n[data-theme='auto'] .ShortcutsDialog-themeAuto {\n  display: initial;\n}\n"],
+  "mappings": 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   "names": []
 }
diff --git a/static/frontend/frontend.tmpl b/static/frontend/frontend.tmpl
index 09cd2fe..05c3aef 100644
--- a/static/frontend/frontend.tmpl
+++ b/static/frontend/frontend.tmpl
@@ -52,6 +52,7 @@
     {{template "header" .}}
     {{template "main" .}}
     {{template "footer" .}}
+    {{template "modals" .}}
     {{if .GoogleTagManagerID}}
       <script>
         // this will throw if the querySelector can’t find the element
diff --git a/static/frontend/frontend.ts b/static/frontend/frontend.ts
index 6cf19a2..36a84dc 100644
--- a/static/frontend/frontend.ts
+++ b/static/frontend/frontend.ts
@@ -11,13 +11,11 @@
 import { ToolTipController } from 'static/shared/tooltip/tooltip';
 import { SelectNavController } from 'static/shared/outline/select';
 import { ModalController } from 'static/shared/modal/modal';
+import { initModals } from 'static/shared/jump/jump';
 
 import { keyboard } from 'static/shared/keyboard/keyboard';
 import * as analytics from 'static/shared/analytics/analytics';
 
-registerHeaderListeners();
-registerSearchFormListeners();
-
 for (const el of document.querySelectorAll<HTMLButtonElement>('.js-clipboard')) {
   new ClipboardController(el);
 }
@@ -38,6 +36,10 @@
   new CarouselController(el);
 }
 
+registerHeaderListeners();
+registerSearchFormListeners();
+initModals();
+
 // Temporary shortcut for testing out the dark theme.
 keyboard.on('t', 'toggle theme', () => {
   toggleTheme();
diff --git a/static/frontend/unit/main/main.css b/static/frontend/unit/main/main.css
index 7ecf9c3..b753ea0 100644
--- a/static/frontend/unit/main/main.css
+++ b/static/frontend/unit/main/main.css
@@ -9,7 +9,6 @@
 @import url('./_doc.css');
 @import url('./_files.css');
 @import url('./_meta.css');
-@import url('./_modals.css');
 @import url('./_outline.css');
 @import url('./_readme_gen.css');
 @import url('./_readme.css');
diff --git a/static/frontend/unit/main/main.js b/static/frontend/unit/main/main.js
index 4fb7a88..c9dbd0a 100644
--- a/static/frontend/unit/main/main.js
+++ b/static/frontend/unit/main/main.js
@@ -1,10 +1,4 @@
-var m={PLAY_HREF:".js-exampleHref",PLAY_CONTAINER:".js-exampleContainer",EXAMPLE_INPUT:".Documentation-exampleCode",EXAMPLE_OUTPUT:".Documentation-exampleOutput",EXAMPLE_ERROR:".Documentation-exampleError",PLAY_BUTTON:".Documentation-examplePlayButton",SHARE_BUTTON:".Documentation-exampleShareButton",FORMAT_BUTTON:".Documentation-exampleFormatButton",RUN_BUTTON:".Documentation-exampleRunButton"},I=class{constructor(e){this.exampleEl=e;var t,i,s,l;this.exampleEl=e,this.anchorEl=e.querySelector("a"),this.errorEl=e.querySelector(m.EXAMPLE_ERROR),this.playButtonEl=e.querySelector(m.PLAY_BUTTON),this.shareButtonEl=e.querySelector(m.SHARE_BUTTON),this.formatButtonEl=e.querySelector(m.FORMAT_BUTTON),this.runButtonEl=e.querySelector(m.RUN_BUTTON),this.inputEl=this.makeTextArea(e.querySelector(m.EXAMPLE_INPUT)),this.outputEl=e.querySelector(m.EXAMPLE_OUTPUT),(t=this.playButtonEl)==null||t.addEventListener("click",()=>this.handleShareButtonClick()),(i=this.shareButtonEl)==null||i.addEventListener("click",()=>this.handleShareButtonClick()),(s=this.formatButtonEl)==null||s.addEventListener("click",()=>this.handleFormatButtonClick()),(l=this.runButtonEl)==null||l.addEventListener("click",()=>this.handleRunButtonClick()),!!this.inputEl&&(this.resize(),this.inputEl.addEventListener("keyup",()=>this.resize()),this.inputEl.addEventListener("keydown",r=>this.onKeydown(r)))}makeTextArea(e){var i,s;let t=document.createElement("textarea");return t.classList.add("Documentation-exampleCode","code"),t.spellcheck=!1,t.value=(i=e==null?void 0:e.textContent)!=null?i:"",(s=e==null?void 0:e.parentElement)==null||s.replaceChild(t,e),t}getAnchorHash(){var e;return(e=this.anchorEl)==null?void 0:e.hash}expand(){this.exampleEl.open=!0}resize(){var e;if((e=this.inputEl)==null?void 0:e.value){let t=(this.inputEl.value.match(/\n/g)||[]).length;this.inputEl.style.height=`${(20+t*20+12+2)/16}rem`}}onKeydown(e){e.key==="Tab"&&(document.execCommand("insertText",!1,"	"),e.preventDefault())}setInputText(e){this.inputEl&&(this.inputEl.value=e)}setOutputText(e){this.outputEl&&(this.outputEl.textContent=e)}setErrorText(e){this.errorEl&&(this.errorEl.textContent=e),this.setOutputText("An error has occurred\u2026")}handleShareButtonClick(){var t;let e="https://play.golang.org/p/";this.setOutputText("Waiting for remote server\u2026"),fetch("/play/share",{method:"POST",body:(t=this.inputEl)==null?void 0:t.value}).then(i=>i.text()).then(i=>{let s=e+i;this.setOutputText(`<a href="${s}">${s}</a>`),window.open(s)}).catch(i=>{this.setErrorText(i)})}handleFormatButtonClick(){var t,i;this.setOutputText("Waiting for remote server\u2026");let e=new FormData;e.append("body",(i=(t=this.inputEl)==null?void 0:t.value)!=null?i:""),fetch("/play/fmt",{method:"POST",body:e}).then(s=>s.json()).then(({Body:s,Error:l})=>{this.setOutputText(l||"Done."),s&&(this.setInputText(s),this.resize())}).catch(s=>{this.setErrorText(s)})}handleRunButtonClick(){var e;this.setOutputText("Waiting for remote server\u2026"),fetch("/play/compile",{method:"POST",body:JSON.stringify({body:(e=this.inputEl)==null?void 0:e.value,version:2})}).then(t=>t.json()).then(async({Events:t,Errors:i})=>{this.setOutputText(i||"");for(let s of t||[])this.setOutputText(s.Message),await new Promise(l=>setTimeout(l,s.Delay/1e6))}).catch(t=>{this.setErrorText(t)})}};function S(){let n=location.hash.match(/^#(example-.*)$/);if(n){let i=document.getElementById(n[1]);i&&(i.open=!0)}let e=[...document.querySelectorAll(m.PLAY_HREF)],t=i=>e.find(s=>s.hash===i.getAnchorHash());for(let i of document.querySelectorAll(m.PLAY_CONTAINER)){let s=new I(i),l=t(s);l?l.addEventListener("click",()=>{s.expand()}):console.warn("example href not found")}}function H(n,e,t,i){var s;(s=window.dataLayer)!=null||(window.dataLayer=[]),typeof n=="string"?window.dataLayer.push({event:n,event_category:e,event_action:t,event_label:i}):window.dataLayer.push(n)}var O=class{constructor(){this.handlers={},document.addEventListener("keydown",e=>this.handleKeyPress(e))}on(e,t,i,s){var l,r;return(r=(l=this.handlers)[e])!=null||(l[e]=new Set),this.handlers[e].add({description:t,callback:i,...s}),this}handleKeyPress(e){var t;for(let i of(t=this.handlers[e.key.toLowerCase()])!=null?t:new Set){if(i.target&&i.target!==e.target)return;let s=e.target;if(!i.target&&((s==null?void 0:s.tagName)==="INPUT"||(s==null?void 0:s.tagName)==="SELECT"||(s==null?void 0:s.tagName)==="TEXTAREA")||(s==null?void 0:s.isContentEditable)||i.withMeta&&!(e.ctrlKey||e.metaKey)||!i.withMeta&&(e.ctrlKey||e.metaKey))return;H("keypress","hotkeys",`${e.key} pressed`,i.description),i.callback(e)}}},B=new O;var a=document.querySelector(".JumpDialog"),p=a==null?void 0:a.querySelector(".JumpDialog-body"),c=a==null?void 0:a.querySelector(".JumpDialog-list"),u=a==null?void 0:a.querySelector(".JumpDialog-input"),N=document.querySelector(".js-documentation"),h;function $(){let n=[];if(!!N){for(let e of N.querySelectorAll("[data-kind]"))n.push(G(e));for(let e of n)e.link.addEventListener("click",function(){a==null||a.close()});return n.sort(function(e,t){return e.lower.localeCompare(t.lower)}),n}}function G(n){var s;let e=document.createElement("a"),t=n.getAttribute("id");e.setAttribute("href","#"+t),e.setAttribute("tabindex","-1"),e.setAttribute("data-gtmc","jump to link");let 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-/*!
- * @license
- * Copyright 2019-2020 The Go Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style
- * license that can be found in the LICENSE file.
- */
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r=e.nextElementSibling;for(;r;){if(r.tagName.toLowerCase()=="ul"){let x=`${(v=i==null?void 0:i.label)!=null?v:""} nav group ${this.label}`.replace(/[\W_]+/g,"_");e.setAttribute("aria-owns",x),e.setAttribute("aria-expanded","false"),r.setAttribute("role","group"),r.setAttribute("id",x),this.isExpandable=!0;break}r=r.nextElementSibling}this.init()}init(){this.el.tabIndex=-1,this.el.getAttribute("role")||this.el.setAttribute("role","treeitem"),this.el.addEventListener("keydown",this.handleKeydown.bind(this)),this.el.addEventListener("click",this.handleClick.bind(this)),this.el.addEventListener("focus",this.handleFocus.bind(this)),this.el.addEventListener("blur",this.handleBlur.bind(this))}isExpanded(){return this.isExpandable?this.el.getAttribute("aria-expanded")==="true":!1}isSelected(){return this.el.getAttribute("aria-selected")==="true"}handleClick(e){e.target!==this.el&&e.target!==this.el.firstElementChild||(this.isExpandable&&(this.isExpanded()&&this.isSelected()?this.tree.collapseTreeitem(this):this.tree.expandTreeitem(this),e.stopPropagation()),this.tree.setSelected(this))}handleFocus(){var t;let e=this.el;this.isExpandable&&(e=(t=e.firstElementChild)!=null?t:e),e.classList.add("focus")}handleBlur(){var t;let e=this.el;this.isExpandable&&(e=(t=e.firstElementChild)!=null?t:e),e.classList.remove("focus")}handleKeydown(e){if(e.altKey||e.ctrlKey||e.metaKey)return;let t=!1;switch(e.key){case" ":case"Enter":this.isExpandable?(this.isExpanded()&&this.isSelected()?this.tree.collapseTreeitem(this):this.tree.expandTreeitem(this),t=!0):e.stopPropagation(),this.tree.setSelected(this);break;case"ArrowUp":this.tree.setFocusToPreviousItem(this),t=!0;break;case"ArrowDown":this.tree.setFocusToNextItem(this),t=!0;break;case"ArrowRight":this.isExpandable&&(this.isExpanded()?this.tree.setFocusToNextItem(this):this.tree.expandTreeitem(this)),t=!0;break;case"ArrowLeft":this.isExpandable&&this.isExpanded()?(this.tree.collapseTreeitem(this),t=!0):this.isInGroup&&(this.tree.setFocusToParentItem(this),t=!0);break;case"Home":this.tree.setFocusToFirstItem(),t=!0;break;case"End":this.tree.setFocusToLastItem(),t=!0;break;default:e.key.length===1&&e.key.match(/\S/)&&(e.key=="*"?this.tree.expandAllSiblingItems(this):this.tree.setFocusByFirstCharacter(this,e.key),t=!0);break}t&&(e.stopPropagation(),e.preventDefault())}};function M(l,e){let t;return(...i)=>{let 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p(e.firstElementChild)}var u=document.querySelector(".js-readme"),E=document.querySelector(".js-readmeContent"),S=document.querySelector(".js-readmeOutline"),m=document.querySelectorAll(".js-readmeExpand"),k=document.querySelector(".js-readmeCollapse"),b=document.querySelector(".DocNavMobile-select");u&&E&&S&&m.length&&k&&(window.location.hash.includes("readme")&&h(),b==null||b.addEventListener("change",l=>{l.target.value.startsWith("readme-")&&h()}),m.forEach(l=>l.addEventListener("click",e=>{e.preventDefault(),h(),u.scrollIntoView()})),k.addEventListener("click",l=>{l.preventDefault(),u.classList.remove("UnitReadme--expanded"),m[1]&&m[1].scrollIntoView({block:"center"})}),E.addEventListener("keyup",()=>{h()}),E.addEventListener("click",()=>{h()}),S.addEventListener("click",()=>{h()}),document.addEventListener("keydown",l=>{(l.ctrlKey||l.metaKey)&&l.key==="f"&&h()}));function h(){history.replaceState(null,"",`${location.pathname}#section-readme`),u==null||u.classList.add("UnitReadme--expanded")}function w(){var t;if(!location.hash)return;let l=document.getElementById(location.hash.slice(1)),e=(t=l==null?void 0:l.parentElement)==null?void 0:t.parentElement;(e==null?void 0:e.nodeName)==="DETAILS"&&(e.open=!0)}w();window.addEventListener("hashchange",()=>w());document.querySelectorAll(".js-buildContextSelect").forEach(l=>{l.addEventListener("change",e=>{window.location.search=`?GOOS=${e.target.value}`})});
 /*!
  * @license
  * Copyright 2020 The Go Authors. All rights reserved.
diff --git a/static/frontend/unit/main/main.js.map b/static/frontend/unit/main/main.js.map
index 3e10286..f966e10 100644
--- a/static/frontend/unit/main/main.js.map
+++ b/static/frontend/unit/main/main.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
-  "sources": ["../../../shared/playground/playground.ts", "../../../shared/analytics/analytics.ts", "../../../shared/keyboard/keyboard.ts", "../../../shared/jump/jump.ts", "../../../shared/outline/select.ts", "../../../shared/outline/tree.ts", "../../../shared/table/table.ts", "main.ts"],
-  "sourcesContent": ["/*!\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n// This file implements the playground implementation of the documentation\n// page. The playground involves a \"play\" button that allows you to open up\n// a new link to play.golang.org using the example code.\n\n// The CSS is in static/frontend/unit/main/_doc.css\n\n/**\n * CSS classes used by PlaygroundExampleController\n */\nconst PlayExampleClassName = {\n  PLAY_HREF: '.js-exampleHref',\n  PLAY_CONTAINER: '.js-exampleContainer',\n  EXAMPLE_INPUT: '.Documentation-exampleCode',\n  EXAMPLE_OUTPUT: '.Documentation-exampleOutput',\n  EXAMPLE_ERROR: '.Documentation-exampleError',\n  PLAY_BUTTON: '.Documentation-examplePlayButton',\n  SHARE_BUTTON: '.Documentation-exampleShareButton',\n  FORMAT_BUTTON: '.Documentation-exampleFormatButton',\n  RUN_BUTTON: '.Documentation-exampleRunButton',\n};\n\n/**\n * This controller enables playground examples to expand their dropdown or\n * generate shareable Go Playground URLs.\n */\nexport class PlaygroundExampleController {\n  /**\n   * The anchor tag used to identify the container with an example href.\n   * There is only one in an example container div.\n   */\n  private readonly anchorEl: HTMLAnchorElement | null;\n\n  /**\n   * The error element\n   */\n  private readonly errorEl: Element | null;\n\n  /**\n   * Buttons that redirect to an example's playground, this element\n   * only exists in executable examples.\n   */\n  private readonly playButtonEl: Element | null;\n  private readonly shareButtonEl: Element | null;\n\n  /**\n   * Button that formats the code in an example's playground.\n   */\n  private readonly formatButtonEl: Element | null;\n\n  /**\n   * Button that runs the code in an example's playground, this element\n   * only exists in executable examples.\n   */\n  private readonly runButtonEl: Element | null;\n\n  /**\n   * The executable code of an example.\n   */\n  private readonly inputEl: HTMLTextAreaElement | null;\n\n  /**\n   * The output of the given example code. This only exists if the\n   * author of the package provides an output for this example.\n   */\n  private readonly outputEl: Element | null;\n\n  /**\n   * @param exampleEl The div that contains playground content for the given example.\n   */\n  constructor(private readonly exampleEl: HTMLDetailsElement) {\n    this.exampleEl = exampleEl;\n    this.anchorEl = exampleEl.querySelector('a');\n    this.errorEl = exampleEl.querySelector(PlayExampleClassName.EXAMPLE_ERROR);\n    this.playButtonEl = exampleEl.querySelector(PlayExampleClassName.PLAY_BUTTON);\n    this.shareButtonEl = exampleEl.querySelector(PlayExampleClassName.SHARE_BUTTON);\n    this.formatButtonEl = exampleEl.querySelector(PlayExampleClassName.FORMAT_BUTTON);\n    this.runButtonEl = exampleEl.querySelector(PlayExampleClassName.RUN_BUTTON);\n    this.inputEl = this.makeTextArea(exampleEl.querySelector(PlayExampleClassName.EXAMPLE_INPUT));\n    this.outputEl = exampleEl.querySelector(PlayExampleClassName.EXAMPLE_OUTPUT);\n\n    // This is legacy listener to be replaced the listener for shareButtonEl.\n    this.playButtonEl?.addEventListener('click', () => this.handleShareButtonClick());\n    this.shareButtonEl?.addEventListener('click', () => this.handleShareButtonClick());\n    this.formatButtonEl?.addEventListener('click', () => this.handleFormatButtonClick());\n    this.runButtonEl?.addEventListener('click', () => this.handleRunButtonClick());\n\n    if (!this.inputEl) return;\n\n    this.resize();\n    this.inputEl.addEventListener('keyup', () => this.resize());\n    this.inputEl.addEventListener('keydown', e => this.onKeydown(e));\n  }\n\n  /**\n   * Replace the pre element with a textarea. The examples are initially rendered\n   * as pre elements so they're fully visible when JS is disabled.\n   */\n  makeTextArea(el: Element | null): HTMLTextAreaElement {\n    const t = document.createElement('textarea');\n    t.classList.add('Documentation-exampleCode', 'code');\n    t.spellcheck = false;\n    t.value = el?.textContent ?? '';\n    el?.parentElement?.replaceChild(t, el);\n    return t;\n  }\n\n  /**\n   * Retrieve the hash value of the anchor element.\n   */\n  getAnchorHash(): string | undefined {\n    return this.anchorEl?.hash;\n  }\n\n  /**\n   * Expands the current playground example.\n   */\n  expand(): void {\n    this.exampleEl.open = true;\n  }\n\n  /**\n   * Resizes the input element to accomodate the amount of text present.\n   */\n  private resize(): void {\n    if (this.inputEl?.value) {\n      const numLineBreaks = (this.inputEl.value.match(/\\n/g) || []).length;\n      // min-height + lines x line-height + padding + border\n      this.inputEl.style.height = `${(20 + numLineBreaks * 20 + 12 + 2) / 16}rem`;\n    }\n  }\n\n  /**\n   * Handler to override keyboard behavior in the playground's\n   * textarea element.\n   *\n   * Tab key inserts tabs into the example playground instead of\n   * switching to the next interactive element.\n   * @param e input element keyboard event.\n   */\n  private onKeydown(e: KeyboardEvent) {\n    if (e.key === 'Tab') {\n      document.execCommand('insertText', false, '\\t');\n      e.preventDefault();\n    }\n  }\n\n  /**\n   * Changes the text of the example's input box.\n   */\n  private setInputText(output: string) {\n    if (this.inputEl) {\n      this.inputEl.value = output;\n    }\n  }\n\n  /**\n   * Changes the text of the example's output box.\n   */\n  private setOutputText(output: string) {\n    if (this.outputEl) {\n      this.outputEl.textContent = output;\n    }\n  }\n\n  /**\n   * Sets the error message text and overwrites\n   * output box to indicate a failed response.\n   */\n  private setErrorText(err: string) {\n    if (this.errorEl) {\n      this.errorEl.textContent = err;\n    }\n    this.setOutputText('An error has occurred\u2026');\n  }\n\n  /**\n   * Opens a new window to play.golang.org using the\n   * example snippet's code in the playground.\n   */\n  private handleShareButtonClick() {\n    const PLAYGROUND_BASE_URL = 'https://play.golang.org/p/';\n\n    this.setOutputText('Waiting for remote server\u2026');\n\n    fetch('/play/share', {\n      method: 'POST',\n      body: this.inputEl?.value,\n    })\n      .then(res => res.text())\n      .then(shareId => {\n        const href = PLAYGROUND_BASE_URL + shareId;\n        this.setOutputText(`<a href=\"${href}\">${href}</a>`);\n        window.open(href);\n      })\n      .catch(err => {\n        this.setErrorText(err);\n      });\n  }\n\n  /**\n   * Runs gofmt on the example snippet in the playground.\n   */\n  private handleFormatButtonClick() {\n    this.setOutputText('Waiting for remote server\u2026');\n    const body = new FormData();\n    body.append('body', this.inputEl?.value ?? '');\n\n    fetch('/play/fmt', {\n      method: 'POST',\n      body: body,\n    })\n      .then(res => res.json())\n      .then(({ Body, Error }) => {\n        this.setOutputText(Error || 'Done.');\n        if (Body) {\n          this.setInputText(Body);\n          this.resize();\n        }\n      })\n      .catch(err => {\n        this.setErrorText(err);\n      });\n  }\n\n  /**\n   * Runs the code snippet in the example playground.\n   */\n  private handleRunButtonClick() {\n    this.setOutputText('Waiting for remote server\u2026');\n\n    fetch('/play/compile', {\n      method: 'POST',\n      body: JSON.stringify({ body: this.inputEl?.value, version: 2 }),\n    })\n      .then(res => res.json())\n      .then(async ({ Events, Errors }) => {\n        this.setOutputText(Errors || '');\n        for (const e of Events || []) {\n          this.setOutputText(e.Message);\n          await new Promise(resolve => setTimeout(resolve, e.Delay / 1000000));\n        }\n      })\n      .catch(err => {\n        this.setErrorText(err);\n      });\n  }\n}\n\nexport function initPlaygrounds(): void {\n  const exampleHashRegex = location.hash.match(/^#(example-.*)$/);\n  if (exampleHashRegex) {\n    const exampleHashEl = document.getElementById(exampleHashRegex[1]) as HTMLDetailsElement;\n    if (exampleHashEl) {\n      exampleHashEl.open = true;\n    }\n  }\n\n  // We use a spread operator to convert a nodelist into an array of elements.\n  const exampleHrefs = [\n    ...document.querySelectorAll<HTMLAnchorElement>(PlayExampleClassName.PLAY_HREF),\n  ];\n\n  /**\n   * Sometimes exampleHrefs and playContainers are in different order, so we\n   * find an exampleHref from a common hash.\n   * @param playContainer - playground container\n   */\n  const findExampleHash = (playContainer: PlaygroundExampleController) =>\n    exampleHrefs.find(ex => {\n      return ex.hash === playContainer.getAnchorHash();\n    });\n\n  for (const el of document.querySelectorAll(PlayExampleClassName.PLAY_CONTAINER)) {\n    // There should be the same amount of hrefs referencing examples as example containers.\n    const playContainer = new PlaygroundExampleController(el as HTMLDetailsElement);\n    const exampleHref = findExampleHash(playContainer);\n    if (exampleHref) {\n      exampleHref.addEventListener('click', () => {\n        playContainer.expand();\n      });\n    } else {\n      console.warn('example href not found');\n    }\n  }\n}\n", "interface TagManagerEvent {\n  /**\n   * event is the name of the event, used to filter events in\n   * Google Analytics.\n   */\n  event: string;\n\n  /**\n   * event_category is a name that you supply as a way to group objects\n   * that to analyze. Typically, you will use the same category name\n   * multiple times over related UI elements (buttons, links, etc).\n   */\n  event_category?: string;\n\n  /**\n   * event_action is used to name the type of event or interaction you\n   * want to measure for a particular web object. For example, with a\n   * single \"form\" category, you can analyze a number of specific events\n   * with this parameter, such as: form entered, form submitted.\n   */\n  event_action?: string;\n\n  /**\n   * event_label provide additional information for events that you want\n   * to analyze, such as the text label of a link.\n   */\n  event_label?: string;\n\n  /**\n   * gtm.start is used to initialize Google Tag Manager.\n   */\n  'gtm.start'?: number;\n}\n\n// eslint-disable-next-line @typescript-eslint/no-unused-vars\ndeclare global {\n  interface Window {\n    dataLayer?: (TagManagerEvent | VoidFunction)[];\n    ga?: unknown;\n  }\n}\n\n/**\n * track sends events to Google Tag Manager.\n */\nexport function track(\n  event: string | TagManagerEvent,\n  category?: string,\n  action?: string,\n  label?: string\n): void {\n  window.dataLayer ??= [];\n  if (typeof event === 'string') {\n    window.dataLayer.push({\n      event,\n      event_category: category,\n      event_action: action,\n      event_label: label,\n    });\n  } else {\n    window.dataLayer.push(event);\n  }\n}\n\n/**\n * func adds functions to run sequentionally after\n * Google Tag Manager is ready.\n */\nexport function func(fn: () => void): void {\n  window.dataLayer ??= [];\n  window.dataLayer.push(fn);\n}\n", "/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { track } from '../analytics/analytics';\n\n/**\n * Options are keyhandler callback options.\n */\ninterface Options {\n  /**\n   * target is the element the key event should filter on. The\n   * default target is the document.\n   */\n  target?: Element;\n\n  /**\n   * withMeta specifies if the event callback should fire when\n   * the key is pressed with a meta key (ctrl, alt, etc). By\n   * default meta keypresses are ignored.\n   */\n  withMeta?: boolean;\n}\n\n/**\n * KeyHandler is the config for a keyboard event callback.\n */\ninterface KeyHandler extends Options {\n  description: string;\n  callback: (e: KeyboardEvent) => void;\n}\n\n/**\n * KeyboardController controls event callbacks for sitewide\n * keyboard events. Multiple callbacks can be registered for\n * a single key and by default the controller ignores events\n * for text input targets.\n */\nclass KeyboardController {\n  handlers: Record<string, Set<KeyHandler>>;\n\n  constructor() {\n    this.handlers = {};\n    document.addEventListener('keydown', e => this.handleKeyPress(e));\n  }\n\n  /**\n   * on registers keyboard event callbacks.\n   * @param key the key to register.\n   * @param description name of the event.\n   * @param callback event callback.\n   * @param options set target and withMeta options to override the default behaviors.\n   */\n  on(key: string, description: string, callback: (e: KeyboardEvent) => void, options?: Options) {\n    this.handlers[key] ??= new Set();\n    this.handlers[key].add({ description, callback, ...options });\n    return this;\n  }\n\n  private handleKeyPress(e: KeyboardEvent) {\n    for (const handler of this.handlers[e.key.toLowerCase()] ?? new Set()) {\n      if (handler.target && handler.target !== e.target) {\n        return;\n      }\n      const t = e.target as HTMLElement | null;\n      if (\n        !handler.target &&\n        (t?.tagName === 'INPUT' || t?.tagName === 'SELECT' || t?.tagName === 'TEXTAREA')\n      ) {\n        return;\n      }\n      if (t?.isContentEditable) {\n        return;\n      }\n      if (\n        (handler.withMeta && !(e.ctrlKey || e.metaKey)) ||\n        (!handler.withMeta && (e.ctrlKey || e.metaKey))\n      ) {\n        return;\n      }\n      track('keypress', 'hotkeys', `${e.key} pressed`, handler.description);\n      handler.callback(e);\n    }\n  }\n}\n\nexport const keyboard = new KeyboardController();\n", "/*!\n * @license\n * Copyright 2019-2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n// This file implements the behavior of the \"jump to symbol\" dialog for Go\n// package documentation, as well as the simple dialog that displays keyboard\n// shortcuts.\n\n// The DOM for the dialogs is at the bottom of static/frontend/unit/main/_modals.tmpl.\n// The CSS is in static/frontend/unit/main/_modals.css.\n\n// The dialog is activated by pressing the 'f' key. It presents a list\n// (#JumpDialog-list) of all Go symbols displayed in the documentation.\n// Entering text in the dialog's text box (#JumpDialog-filter) restricts the\n// list to symbols containing the text. Clicking on an symbol jumps to\n// its documentation.\n\n// This code is based on\n// https://go.googlesource.com/gddo/+/refs/heads/master/gddo-server/assets/site.js.\n// It was modified to remove the dependence on jquery and bootstrap.\n\nimport { keyboard } from '../keyboard/keyboard';\n\nconst jumpDialog = document.querySelector<HTMLDialogElement>('.JumpDialog');\nconst jumpBody = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-body');\nconst jumpList = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-list');\nconst jumpFilter = jumpDialog?.querySelector<HTMLInputElement>('.JumpDialog-input');\nconst doc = document.querySelector<HTMLDivElement>('.js-documentation');\n\ninterface JumpListItem {\n  link: HTMLAnchorElement;\n  name: string;\n  kind: string;\n  lower: string;\n}\n\nlet jumpListItems: JumpListItem[] | undefined; // All the symbols in the doc; computed only once.\n\n// collectJumpListItems returns a list of items, one for each symbol in the\n// documentation on the current page.\n//\n// It uses the data-kind attribute generated in the documentation HTML to find\n// the symbols and their id attributes.\n//\n// If there are no data-kind attributes, then we have older doc; fall back to\n// a less precise method.\nfunction collectJumpListItems() {\n  const items = [];\n  if (!doc) return;\n  for (const el of doc.querySelectorAll('[data-kind]')) {\n    items.push(newJumpListItem(el));\n  }\n\n  // Clicking on any of the links closes the dialog.\n  for (const item of items) {\n    item.link.addEventListener('click', function () {\n      jumpDialog?.close();\n    });\n  }\n  // Sort case-insensitively by symbol name.\n  items.sort(function (a, b) {\n    return a.lower.localeCompare(b.lower);\n  });\n  return items;\n}\n\n// newJumpListItem creates a new item for the DOM element el.\n// An item is an object with:\n// - name: the element's id (which is the symbol name)\n// - kind: the element's kind (function, variable, etc.),\n// - link: a link ('a' tag) to the element\n// - lower: the name in lower case, just for sorting\nfunction newJumpListItem(el: Element): JumpListItem {\n  const a = document.createElement('a');\n  const name = el.getAttribute('id');\n  a.setAttribute('href', '#' + name);\n  a.setAttribute('tabindex', '-1');\n  a.setAttribute('data-gtmc', 'jump to link');\n  const kind = el.getAttribute('data-kind');\n  return {\n    link: a,\n    name: name ?? '',\n    kind: kind ?? '',\n    lower: name?.toLowerCase() ?? '', // for sorting\n  };\n}\n\nlet lastFilterValue: string; // The last contents of the filter text box.\nlet activeJumpItem = -1; // The index of the currently active item in the list.\n\n// updateJumpList sets the elements of the dialog list to\n// everything whose name contains filter.\nfunction updateJumpList(filter: string) {\n  lastFilterValue = filter;\n  if (!jumpListItems) {\n    jumpListItems = collectJumpListItems();\n  }\n  setActiveJumpItem(-1);\n\n  // Remove all children from list.\n  while (jumpList?.firstChild) {\n    jumpList.firstChild.remove();\n  }\n\n  if (filter) {\n    // A filter is set. We treat the filter as a substring that can appear in\n    // an item name (case insensitive), and find the following matches - in\n    // order of priority:\n    //\n    // 1. Exact matches (the filter matches the item's name exactly)\n    // 2. Prefix matches (the item's name starts with filter)\n    // 3. Infix matches (the filter is a substring of the item's name)\n    const filterLowerCase = filter.toLowerCase();\n\n    const exactMatches = [];\n    const prefixMatches = [];\n    const infixMatches = [];\n\n    // makeLinkHtml creates the link name HTML for a list item. item is the DOM\n    // item. item.name.substr(boldStart, boldEnd) will be bolded.\n    const makeLinkHtml = (item: JumpListItem, boldStart: number, boldEnd: number) => {\n      return (\n        item.name.substring(0, boldStart) +\n        '<b>' +\n        item.name.substring(boldStart, boldEnd) +\n        '</b>' +\n        item.name.substring(boldEnd)\n      );\n    };\n\n    for (const item of jumpListItems ?? []) {\n      const nameLowerCase = item.name.toLowerCase();\n\n      if (nameLowerCase === filterLowerCase) {\n        item.link.innerHTML = makeLinkHtml(item, 0, item.name.length);\n        exactMatches.push(item);\n      } else if (nameLowerCase.startsWith(filterLowerCase)) {\n        item.link.innerHTML = makeLinkHtml(item, 0, filter.length);\n        prefixMatches.push(item);\n      } else {\n        const index = nameLowerCase.indexOf(filterLowerCase);\n        if (index > -1) {\n          item.link.innerHTML = makeLinkHtml(item, index, index + filter.length);\n          infixMatches.push(item);\n        }\n      }\n    }\n\n    for (const item of exactMatches.concat(prefixMatches).concat(infixMatches)) {\n      jumpList?.appendChild(item.link);\n    }\n  } else {\n    if (!jumpListItems || jumpListItems.length === 0) {\n      const msg = document.createElement('i');\n      msg.innerHTML = 'There are no symbols on this page.';\n      jumpList?.appendChild(msg);\n    }\n    // No filter set; display all items in their existing order.\n    for (const item of jumpListItems ?? []) {\n      item.link.innerHTML = item.name + ' <i>' + item.kind + '</i>';\n      jumpList?.appendChild(item.link);\n    }\n  }\n\n  if (jumpBody) {\n    jumpBody.scrollTop = 0;\n  }\n  if (jumpListItems?.length && jumpList && jumpList.children.length > 0) {\n    setActiveJumpItem(0);\n  }\n}\n\n// Set the active jump item to n.\nfunction setActiveJumpItem(n: number) {\n  const cs = jumpList?.children as HTMLCollectionOf<HTMLElement> | null | undefined;\n  if (!cs || !jumpBody) {\n    return;\n  }\n  if (activeJumpItem >= 0) {\n    cs[activeJumpItem].classList.remove('JumpDialog-active');\n  }\n  if (n >= cs.length) {\n    n = cs.length - 1;\n  }\n  if (n >= 0) {\n    cs[n].classList.add('JumpDialog-active');\n\n    // Scroll so the active item is visible.\n    // For some reason cs[n].scrollIntoView() doesn't behave as I'd expect:\n    // it moves the entire dialog box in the viewport.\n\n    // Get the top and bottom of the active item relative to jumpBody.\n    const activeTop = cs[n].offsetTop - cs[0].offsetTop;\n    const activeBottom = activeTop + cs[n].clientHeight;\n    if (activeTop < jumpBody.scrollTop) {\n      // Off the top; scroll up.\n      jumpBody.scrollTop = activeTop;\n    } else if (activeBottom > jumpBody.scrollTop + jumpBody.clientHeight) {\n      // Off the bottom; scroll down.\n      jumpBody.scrollTop = activeBottom - jumpBody.clientHeight;\n    }\n  }\n  activeJumpItem = n;\n}\n\n// Increment the activeJumpItem by delta.\nfunction incActiveJumpItem(delta: number) {\n  if (activeJumpItem < 0) {\n    return;\n  }\n  let n = activeJumpItem + delta;\n  if (n < 0) {\n    n = 0;\n  }\n  setActiveJumpItem(n);\n}\n\nexport function initModals(): void {\n  // Pressing a key in the filter updates the list (if the filter actually changed).\n  jumpFilter?.addEventListener('keyup', function () {\n    if (jumpFilter.value.toUpperCase() != lastFilterValue.toUpperCase()) {\n      updateJumpList(jumpFilter.value);\n    }\n  });\n\n  // Pressing enter in the filter selects the first element in the list.\n  jumpFilter?.addEventListener('keydown', function (event) {\n    const upArrow = 38;\n    const downArrow = 40;\n    const enterKey = 13;\n    switch (event.which) {\n      case upArrow:\n        incActiveJumpItem(-1);\n        event.preventDefault();\n        break;\n      case downArrow:\n        incActiveJumpItem(1);\n        event.preventDefault();\n        break;\n      case enterKey:\n        if (activeJumpItem >= 0) {\n          if (jumpList) {\n            (jumpList.children[activeJumpItem] as HTMLElement).click();\n            event.preventDefault();\n          }\n        }\n        break;\n    }\n  });\n\n  const shortcutsDialog = document.querySelector<HTMLDialogElement>('.ShortcutsDialog');\n\n  // - Pressing 'f' or 'F' opens the jump-to-symbol dialog.\n  // - Pressing '?' opens up the shortcut dialog.\n  // Ignore a keypress if a dialog is already open, or if it is pressed on a\n  // component that wants to consume it.\n  keyboard\n    .on('f', 'open jump to modal', e => {\n      if (jumpDialog?.open || shortcutsDialog?.open) {\n        return;\n      }\n      e.preventDefault();\n      if (jumpFilter) {\n        jumpFilter.value = '';\n      }\n      jumpDialog?.showModal();\n      jumpFilter?.focus();\n      updateJumpList('');\n    })\n    .on('?', 'open shortcuts modal', () => {\n      if (jumpDialog?.open || shortcutsDialog?.open) {\n        return;\n      }\n      shortcutsDialog?.showModal();\n    });\n\n  const jumpOutlineInput = document.querySelector('.js-jumpToInput');\n  if (jumpOutlineInput) {\n    jumpOutlineInput.addEventListener('click', () => {\n      if (jumpFilter) {\n        jumpFilter.value = '';\n      }\n      updateJumpList('');\n    });\n  }\n\n  document.querySelector('.js-openShortcuts')?.addEventListener('click', () => {\n    shortcutsDialog?.showModal();\n  });\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { TreeNavController } from './tree.js';\n\nexport class SelectNavController {\n  constructor(private el: Element) {\n    this.el.addEventListener('change', e => {\n      const target = e.target as HTMLSelectElement;\n      let href = target.value;\n      if (!target.value.startsWith('/')) {\n        href = '/' + href;\n      }\n      window.location.href = href;\n    });\n  }\n}\n\nexport function makeSelectNav(tree: TreeNavController): HTMLLabelElement {\n  const label = document.createElement('label');\n  label.classList.add('go-Label');\n  label.setAttribute('aria-label', 'Menu');\n  const select = document.createElement('select');\n  select.classList.add('go-Select', 'js-selectNav');\n  label.appendChild(select);\n  const outline = document.createElement('optgroup');\n  outline.label = 'Outline';\n  select.appendChild(outline);\n  const groupMap: Record<string, HTMLOptGroupElement> = {};\n  let group: HTMLOptGroupElement;\n  for (const t of tree.treeitems) {\n    if (Number(t.depth) > 4) continue;\n    if (t.groupTreeitem) {\n      group = groupMap[t.groupTreeitem.label];\n      if (!group) {\n        group = groupMap[t.groupTreeitem.label] = document.createElement('optgroup');\n        group.label = t.groupTreeitem.label;\n        select.appendChild(group);\n      }\n    } else {\n      group = outline;\n    }\n    const o = document.createElement('option');\n    o.label = t.label;\n    o.textContent = t.label;\n    o.value = (t.el as HTMLAnchorElement).href.replace(window.location.origin, '').replace('/', '');\n    group.appendChild(o);\n  }\n  tree.addObserver(t => {\n    const hash = (t.el as HTMLAnchorElement).hash;\n    const value = select.querySelector<HTMLOptionElement>(`[value$=\"${hash}\"]`)?.value;\n    if (value) {\n      select.value = value;\n    }\n  }, 50);\n  return label;\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * TreeNavController is the navigation tree component of the documentation page.\n * It adds accessiblity attributes to a tree, observes the heading elements\n * focus the topmost link for headings visible on the page, and implements the\n * WAI-ARIA Treeview Design Pattern with full\n * [keyboard support](https://www.w3.org/TR/wai-aria-practices/examples/treeview/treeview-2/treeview-2a.html#kbd_label).\n */\nexport class TreeNavController {\n  treeitems: TreeItem[];\n\n  /**\n   * firstChars is the first character of each treeitem in the same order\n   * as this.treeitems. We use this array to set focus by character when\n   * navigating the tree with a keyboard.\n   */\n  private firstChars: string[];\n  private firstTreeitem: TreeItem | null;\n  private lastTreeitem: TreeItem | null;\n  private observerCallbacks: ((t: TreeItem) => void)[];\n\n  constructor(private el: HTMLElement) {\n    this.treeitems = [];\n    this.firstChars = [];\n    this.firstTreeitem = null;\n    this.lastTreeitem = null;\n    this.observerCallbacks = [];\n    this.init();\n  }\n\n  private init(): void {\n    this.handleResize();\n    window.addEventListener('resize', this.handleResize);\n    this.findTreeItems();\n    this.updateVisibleTreeitems();\n    this.observeTargets();\n    if (this.firstTreeitem) {\n      this.firstTreeitem.el.tabIndex = 0;\n    }\n  }\n\n  private handleResize = (): void => {\n    this.el.style.setProperty('--js-tree-height', '100vh');\n    this.el.style.setProperty('--js-tree-height', this.el.clientHeight + 'px');\n  };\n\n  private observeTargets() {\n    this.addObserver(treeitem => {\n      this.expandTreeitem(treeitem);\n      this.setSelected(treeitem);\n      // TODO: Fix scroll issue in https://golang.org/issue/47450.\n      // treeitem.el.scrollIntoView({ block: 'nearest' });\n    });\n\n    const targets = new Map<string, boolean>();\n    const observer = new IntersectionObserver(\n      entries => {\n        for (const entry of entries) {\n          targets.set(entry.target.id, entry.isIntersecting || entry.intersectionRatio === 1);\n        }\n        for (const [id, isIntersecting] of targets) {\n          if (isIntersecting) {\n            const active = this.treeitems.find(t =>\n              (t.el as HTMLAnchorElement)?.href.endsWith(`#${id}`)\n            );\n            if (active) {\n              for (const fn of this.observerCallbacks) {\n                fn(active);\n              }\n            }\n            break;\n          }\n        }\n      },\n      {\n        threshold: 1.0,\n        rootMargin: '-60px 0px 0px 0px',\n      }\n    );\n\n    for (const href of this.treeitems.map(t => t.el.getAttribute('href'))) {\n      if (href) {\n        const id = href.replace(window.location.origin, '').replace('/', '').replace('#', '');\n        const target = document.getElementById(id);\n        if (target) {\n          observer.observe(target);\n        }\n      }\n    }\n  }\n\n  addObserver(fn: (t: TreeItem) => void, delay = 200): void {\n    this.observerCallbacks.push(debounce(fn, delay));\n  }\n\n  setFocusToNextItem(currentItem: TreeItem): void {\n    let nextItem = null;\n    for (let i = currentItem.index + 1; i < this.treeitems.length; i++) {\n      const ti = this.treeitems[i];\n      if (ti.isVisible) {\n        nextItem = ti;\n        break;\n      }\n    }\n    if (nextItem) {\n      this.setFocusToItem(nextItem);\n    }\n  }\n\n  setFocusToPreviousItem(currentItem: TreeItem): void {\n    let prevItem = null;\n    for (let i = currentItem.index - 1; i > -1; i--) {\n      const ti = this.treeitems[i];\n      if (ti.isVisible) {\n        prevItem = ti;\n        break;\n      }\n    }\n    if (prevItem) {\n      this.setFocusToItem(prevItem);\n    }\n  }\n\n  setFocusToParentItem(currentItem: TreeItem): void {\n    if (currentItem.groupTreeitem) {\n      this.setFocusToItem(currentItem.groupTreeitem);\n    }\n  }\n\n  setFocusToFirstItem(): void {\n    this.firstTreeitem && this.setFocusToItem(this.firstTreeitem);\n  }\n\n  setFocusToLastItem(): void {\n    this.lastTreeitem && this.setFocusToItem(this.lastTreeitem);\n  }\n\n  setSelected(currentItem: TreeItem): void {\n    for (const l1 of this.el.querySelectorAll('[aria-expanded=\"true\"]')) {\n      if (l1 === currentItem.el) continue;\n      if (!l1.nextElementSibling?.contains(currentItem.el)) {\n        l1.setAttribute('aria-expanded', 'false');\n      }\n    }\n    for (const l1 of this.el.querySelectorAll('[aria-selected]')) {\n      if (l1 !== currentItem.el) {\n        l1.setAttribute('aria-selected', 'false');\n      }\n    }\n    currentItem.el.setAttribute('aria-selected', 'true');\n    this.updateVisibleTreeitems();\n    this.setFocusToItem(currentItem, false);\n  }\n\n  expandTreeitem(treeitem: TreeItem): void {\n    let currentItem: TreeItem | null = treeitem;\n    while (currentItem) {\n      if (currentItem.isExpandable) {\n        currentItem.el.setAttribute('aria-expanded', 'true');\n      }\n      currentItem = currentItem.groupTreeitem;\n    }\n    this.updateVisibleTreeitems();\n  }\n\n  expandAllSiblingItems(currentItem: TreeItem): void {\n    for (const ti of this.treeitems) {\n      if (ti.groupTreeitem === currentItem.groupTreeitem && ti.isExpandable) {\n        this.expandTreeitem(ti);\n      }\n    }\n  }\n\n  collapseTreeitem(currentItem: TreeItem): void {\n    let groupTreeitem = null;\n\n    if (currentItem.isExpanded()) {\n      groupTreeitem = currentItem;\n    } else {\n      groupTreeitem = currentItem.groupTreeitem;\n    }\n\n    if (groupTreeitem) {\n      groupTreeitem.el.setAttribute('aria-expanded', 'false');\n      this.updateVisibleTreeitems();\n      this.setFocusToItem(groupTreeitem);\n    }\n  }\n\n  setFocusByFirstCharacter(currentItem: TreeItem, char: string): void {\n    let start: number, index: number;\n    char = char.toLowerCase();\n\n    // Get start index for search based on position of currentItem\n    start = currentItem.index + 1;\n    if (start === this.treeitems.length) {\n      start = 0;\n    }\n\n    // Check remaining slots in the menu\n    index = this.getIndexFirstChars(start, char);\n\n    // If not found in remaining slots, check from beginning\n    if (index === -1) {\n      index = this.getIndexFirstChars(0, char);\n    }\n\n    // If match was found...\n    if (index > -1) {\n      this.setFocusToItem(this.treeitems[index]);\n    }\n  }\n\n  private findTreeItems() {\n    const findItems = (el: HTMLElement, group: TreeItem | null) => {\n      let ti = group;\n      let curr = el.firstElementChild as HTMLElement;\n      while (curr) {\n        if (curr.tagName === 'A' || curr.tagName === 'SPAN') {\n          ti = new TreeItem(curr, this, group);\n          this.treeitems.push(ti);\n          this.firstChars.push(ti.label.substring(0, 1).toLowerCase());\n        }\n        if (curr.firstElementChild) {\n          findItems(curr, ti);\n        }\n        curr = curr.nextElementSibling as HTMLElement;\n      }\n    };\n    findItems(this.el as HTMLElement, null);\n    this.treeitems.map((ti, idx) => (ti.index = idx));\n  }\n\n  private updateVisibleTreeitems(): void {\n    this.firstTreeitem = this.treeitems[0];\n\n    for (const ti of this.treeitems) {\n      let parent = ti.groupTreeitem;\n      ti.isVisible = true;\n      while (parent && parent.el !== this.el) {\n        if (!parent.isExpanded()) {\n          ti.isVisible = false;\n        }\n        parent = parent.groupTreeitem;\n      }\n      if (ti.isVisible) {\n        this.lastTreeitem = ti;\n      }\n    }\n  }\n\n  private setFocusToItem(treeitem: TreeItem, focusEl = true) {\n    treeitem.el.tabIndex = 0;\n    if (focusEl) {\n      treeitem.el.focus();\n    }\n    for (const ti of this.treeitems) {\n      if (ti !== treeitem) {\n        ti.el.tabIndex = -1;\n      }\n    }\n  }\n\n  private getIndexFirstChars(startIndex: number, char: string): number {\n    for (let i = startIndex; i < this.firstChars.length; i++) {\n      if (this.treeitems[i].isVisible && char === this.firstChars[i]) {\n        return i;\n      }\n    }\n    return -1;\n  }\n}\n\nclass TreeItem {\n  el: HTMLElement;\n  groupTreeitem: TreeItem | null;\n  label: string;\n  isExpandable: boolean;\n  isVisible: boolean;\n  depth: number;\n  index: number;\n\n  private tree: TreeNavController;\n  private isInGroup: boolean;\n\n  constructor(el: HTMLElement, treeObj: TreeNavController, group: TreeItem | null) {\n    el.tabIndex = -1;\n    this.el = el;\n    this.groupTreeitem = group;\n    this.label = el.textContent?.trim() ?? '';\n    this.tree = treeObj;\n    this.depth = (group?.depth || 0) + 1;\n    this.index = 0;\n\n    const parent = el.parentElement;\n    if (parent?.tagName.toLowerCase() === 'li') {\n      parent?.setAttribute('role', 'none');\n    }\n    el.setAttribute('aria-level', this.depth + '');\n    if (el.getAttribute('aria-label')) {\n      this.label = el?.getAttribute('aria-label')?.trim() ?? '';\n    }\n\n    this.isExpandable = false;\n    this.isVisible = false;\n    this.isInGroup = !!group;\n\n    let curr = el.nextElementSibling;\n    while (curr) {\n      if (curr.tagName.toLowerCase() == 'ul') {\n        const groupId = `${group?.label ?? 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All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * Controller for a table element with expandable rows. Adds event listeners to\n * a toggle within a table row that controls visiblity of additional related\n * rows in the table.\n *\n * @example\n * ```typescript\n * import {ExpandableRowsTableController} from '/static/js/table';\n *\n * const el = document .querySelector<HTMLTableElement>('.js-myTableElement')\n * new ExpandableRowsTableController(el));\n * ```\n */\nexport class ExpandableRowsTableController {\n  private rows: HTMLTableRowElement[];\n  private toggles: HTMLButtonElement[];\n\n  /**\n   * Create a table controller.\n   * @param table - The table element to which the controller binds.\n   */\n  constructor(private table: HTMLTableElement, private toggleAll?: HTMLButtonElement | null) {\n    this.rows = Array.from(table.querySelectorAll<HTMLTableRowElement>('[data-aria-controls]'));\n    this.toggles = Array.from(this.table.querySelectorAll('[aria-expanded]'));\n    this.setAttributes();\n    this.attachEventListeners();\n    this.update();\n  }\n\n  /**\n   * setAttributes sets data-aria-* and data-id attributes to regular\n   * html attributes as a workaround for limitations from safehtml.\n   */\n  private setAttributes() {\n    for (const a of ['data-aria-controls', 'data-aria-labelledby', 'data-id']) {\n      this.table.querySelectorAll(`[${a}]`).forEach(t => {\n        t.setAttribute(a.replace('data-', ''), t.getAttribute(a) ?? 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'false' : 'true');\n    e.stopPropagation();\n    this.update();\n  }\n\n  expandAllItems = (): void => {\n    this.toggles.map(t => t.setAttribute('aria-expanded', 'true'));\n    this.update();\n  };\n\n  private collapseAllItems = () => {\n    this.toggles.map(t => t.setAttribute('aria-expanded', 'false'));\n    this.update();\n  };\n\n  private update = () => {\n    this.updateVisibleItems();\n    setTimeout(() => this.updateGlobalToggle());\n  };\n\n  private updateVisibleItems() {\n    this.rows.map(t => {\n      const isExpanded = t?.getAttribute('aria-expanded') === 'true';\n      const rowIds = t?.getAttribute('aria-controls')?.trimEnd().split(' ');\n      rowIds?.map(id => {\n        const target = document.getElementById(`${id}`);\n        if (isExpanded) {\n          target?.classList.add('visible');\n          target?.classList.remove('hidden');\n        } else {\n          target?.classList.add('hidden');\n          target?.classList.remove('visible');\n        }\n      });\n    });\n  }\n\n  private updateGlobalToggle() {\n    if (!this.toggleAll) return;\n    if (this.rows.some(t => t.hasAttribute('aria-expanded'))) {\n      this.toggleAll.style.display = 'block';\n    }\n    const someCollapsed = this.toggles.some(el => el.getAttribute('aria-expanded') === 'false');\n    if (someCollapsed) {\n      this.toggleAll.innerText = 'Expand all';\n      this.toggleAll.onclick = this.expandAllItems;\n    } else {\n      this.toggleAll.innerText = 'Collapse all';\n      this.toggleAll.onclick = this.collapseAllItems;\n    }\n  }\n}\n", "import { initPlaygrounds } from 'static/shared/playground/playground';\nimport { initModals } from 'static/shared/jump/jump';\nimport { SelectNavController, makeSelectNav } from 'static/shared/outline/select';\nimport { TreeNavController } from 'static/shared/outline/tree';\nimport { ExpandableRowsTableController } from 'static/shared/table/table';\n\ninitModals();\ninitPlaygrounds();\n\nconst directories = document.querySelector<HTMLTableElement>('.js-expandableTable');\nif (directories) {\n  const table = new ExpandableRowsTableController(\n    directories,\n    document.querySelector<HTMLButtonElement>('.js-expandAllDirectories')\n  );\n  // Expand directories on page load with expand-directories query param.\n  if (window.location.search.includes('expand-directories')) {\n    table.expandAllItems();\n  }\n}\n\nconst treeEl = document.querySelector<HTMLElement>('.js-tree');\nif (treeEl) {\n  const treeCtrl = new TreeNavController(treeEl);\n  const select = makeSelectNav(treeCtrl);\n  const mobileNav = document.querySelector('.js-mainNavMobile');\n  if (mobileNav && mobileNav.firstElementChild) {\n    mobileNav?.replaceChild(select, mobileNav.firstElementChild);\n  }\n  if (select.firstElementChild) {\n    new SelectNavController(select.firstElementChild);\n  }\n}\n\n/**\n * Event handlers for expanding and collapsing the readme section.\n */\nconst readme = document.querySelector('.js-readme');\nconst readmeContent = document.querySelector('.js-readmeContent');\nconst readmeOutline = document.querySelector('.js-readmeOutline');\nconst readmeExpand = document.querySelectorAll('.js-readmeExpand');\nconst readmeCollapse = document.querySelector('.js-readmeCollapse');\nconst mobileNavSelect = document.querySelector<HTMLSelectElement>('.DocNavMobile-select');\nif (readme && readmeContent && readmeOutline && readmeExpand.length && readmeCollapse) {\n  if (window.location.hash.includes('readme')) {\n    expandReadme();\n  }\n  mobileNavSelect?.addEventListener('change', e => {\n    if ((e.target as HTMLSelectElement).value.startsWith('readme-')) {\n      expandReadme();\n    }\n  });\n  readmeExpand.forEach(el =>\n    el.addEventListener('click', e => {\n      e.preventDefault();\n      expandReadme();\n      readme.scrollIntoView();\n    })\n  );\n  readmeCollapse.addEventListener('click', e => {\n    e.preventDefault();\n    readme.classList.remove('UnitReadme--expanded');\n    if (readmeExpand[1]) {\n      readmeExpand[1].scrollIntoView({ block: 'center' });\n    }\n  });\n  readmeContent.addEventListener('keyup', () => {\n    expandReadme();\n  });\n  readmeContent.addEventListener('click', () => {\n    expandReadme();\n  });\n  readmeOutline.addEventListener('click', () => {\n    expandReadme();\n  });\n  document.addEventListener('keydown', e => {\n    if ((e.ctrlKey || e.metaKey) && e.key === 'f') {\n      expandReadme();\n    }\n  });\n}\n\n/**\n * expandReadme expands the readme and adds the section-readme hash to the\n * URL so it stays expanded when navigating back from an external link.\n */\nfunction expandReadme() {\n  history.replaceState(null, '', `${location.pathname}#section-readme`);\n  readme?.classList.add('UnitReadme--expanded');\n}\n\n/**\n * Expand details items that are focused. 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+  "sources": ["../../../shared/playground/playground.ts", "../../../shared/outline/select.ts", "../../../shared/outline/tree.ts", "../../../shared/table/table.ts", "main.ts"],
+  "sourcesContent": ["/*!\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n// This file implements the playground implementation of the documentation\n// page. The playground involves a \"play\" button that allows you to open up\n// a new link to play.golang.org using the example code.\n\n// The CSS is in static/frontend/unit/main/_doc.css\n\n/**\n * CSS classes used by PlaygroundExampleController\n */\nconst PlayExampleClassName = {\n  PLAY_HREF: '.js-exampleHref',\n  PLAY_CONTAINER: '.js-exampleContainer',\n  EXAMPLE_INPUT: '.Documentation-exampleCode',\n  EXAMPLE_OUTPUT: '.Documentation-exampleOutput',\n  EXAMPLE_ERROR: '.Documentation-exampleError',\n  PLAY_BUTTON: '.Documentation-examplePlayButton',\n  SHARE_BUTTON: '.Documentation-exampleShareButton',\n  FORMAT_BUTTON: '.Documentation-exampleFormatButton',\n  RUN_BUTTON: '.Documentation-exampleRunButton',\n};\n\n/**\n * This controller enables playground examples to expand their dropdown or\n * generate shareable Go Playground URLs.\n */\nexport class PlaygroundExampleController {\n  /**\n   * The anchor tag used to identify the container with an example href.\n   * There is only one in an example container div.\n   */\n  private readonly anchorEl: HTMLAnchorElement | null;\n\n  /**\n   * The error element\n   */\n  private readonly errorEl: Element | null;\n\n  /**\n   * Buttons that redirect to an example's playground, this element\n   * only exists in executable examples.\n   */\n  private readonly playButtonEl: Element | null;\n  private readonly shareButtonEl: Element | null;\n\n  /**\n   * Button that formats the code in an example's playground.\n   */\n  private readonly formatButtonEl: Element | null;\n\n  /**\n   * Button that runs the code in an example's playground, this element\n   * only exists in executable examples.\n   */\n  private readonly runButtonEl: Element | null;\n\n  /**\n   * The executable code of an example.\n   */\n  private readonly inputEl: HTMLTextAreaElement | null;\n\n  /**\n   * The output of the given example code. This only exists if the\n   * author of the package provides an output for this example.\n   */\n  private readonly outputEl: Element | null;\n\n  /**\n   * @param exampleEl The div that contains playground content for the given example.\n   */\n  constructor(private readonly exampleEl: HTMLDetailsElement) {\n    this.exampleEl = exampleEl;\n    this.anchorEl = exampleEl.querySelector('a');\n    this.errorEl = exampleEl.querySelector(PlayExampleClassName.EXAMPLE_ERROR);\n    this.playButtonEl = exampleEl.querySelector(PlayExampleClassName.PLAY_BUTTON);\n    this.shareButtonEl = exampleEl.querySelector(PlayExampleClassName.SHARE_BUTTON);\n    this.formatButtonEl = exampleEl.querySelector(PlayExampleClassName.FORMAT_BUTTON);\n    this.runButtonEl = exampleEl.querySelector(PlayExampleClassName.RUN_BUTTON);\n    this.inputEl = this.makeTextArea(exampleEl.querySelector(PlayExampleClassName.EXAMPLE_INPUT));\n    this.outputEl = exampleEl.querySelector(PlayExampleClassName.EXAMPLE_OUTPUT);\n\n    // This is legacy listener to be replaced the listener for shareButtonEl.\n    this.playButtonEl?.addEventListener('click', () => this.handleShareButtonClick());\n    this.shareButtonEl?.addEventListener('click', () => this.handleShareButtonClick());\n    this.formatButtonEl?.addEventListener('click', () => this.handleFormatButtonClick());\n    this.runButtonEl?.addEventListener('click', () => this.handleRunButtonClick());\n\n    if (!this.inputEl) return;\n\n    this.resize();\n    this.inputEl.addEventListener('keyup', () => this.resize());\n    this.inputEl.addEventListener('keydown', e => this.onKeydown(e));\n  }\n\n  /**\n   * Replace the pre element with a textarea. The examples are initially rendered\n   * as pre elements so they're fully visible when JS is disabled.\n   */\n  makeTextArea(el: Element | null): HTMLTextAreaElement {\n    const t = document.createElement('textarea');\n    t.classList.add('Documentation-exampleCode', 'code');\n    t.spellcheck = false;\n    t.value = el?.textContent ?? '';\n    el?.parentElement?.replaceChild(t, el);\n    return t;\n  }\n\n  /**\n   * Retrieve the hash value of the anchor element.\n   */\n  getAnchorHash(): string | undefined {\n    return this.anchorEl?.hash;\n  }\n\n  /**\n   * Expands the current playground example.\n   */\n  expand(): void {\n    this.exampleEl.open = true;\n  }\n\n  /**\n   * Resizes the input element to accomodate the amount of text present.\n   */\n  private resize(): void {\n    if (this.inputEl?.value) {\n      const numLineBreaks = (this.inputEl.value.match(/\\n/g) || []).length;\n      // min-height + lines x line-height + padding + border\n      this.inputEl.style.height = `${(20 + numLineBreaks * 20 + 12 + 2) / 16}rem`;\n    }\n  }\n\n  /**\n   * Handler to override keyboard behavior in the playground's\n   * textarea element.\n   *\n   * Tab key inserts tabs into the example playground instead of\n   * switching to the next interactive element.\n   * @param e input element keyboard event.\n   */\n  private onKeydown(e: KeyboardEvent) {\n    if (e.key === 'Tab') {\n      document.execCommand('insertText', false, '\\t');\n      e.preventDefault();\n    }\n  }\n\n  /**\n   * Changes the text of the example's input box.\n   */\n  private setInputText(output: string) {\n    if (this.inputEl) {\n      this.inputEl.value = output;\n    }\n  }\n\n  /**\n   * Changes the text of the example's output box.\n   */\n  private setOutputText(output: string) {\n    if (this.outputEl) {\n      this.outputEl.textContent = output;\n    }\n  }\n\n  /**\n   * Sets the error message text and overwrites\n   * output box to indicate a failed response.\n   */\n  private setErrorText(err: string) {\n    if (this.errorEl) {\n      this.errorEl.textContent = err;\n    }\n    this.setOutputText('An error has occurred\u2026');\n  }\n\n  /**\n   * Opens a new window to play.golang.org using the\n   * example snippet's code in the playground.\n   */\n  private handleShareButtonClick() {\n    const PLAYGROUND_BASE_URL = 'https://play.golang.org/p/';\n\n    this.setOutputText('Waiting for remote server\u2026');\n\n    fetch('/play/share', {\n      method: 'POST',\n      body: this.inputEl?.value,\n    })\n      .then(res => res.text())\n      .then(shareId => {\n        const href = PLAYGROUND_BASE_URL + shareId;\n        this.setOutputText(`<a href=\"${href}\">${href}</a>`);\n        window.open(href);\n      })\n      .catch(err => {\n        this.setErrorText(err);\n      });\n  }\n\n  /**\n   * Runs gofmt on the example snippet in the playground.\n   */\n  private handleFormatButtonClick() {\n    this.setOutputText('Waiting for remote server\u2026');\n    const body = new FormData();\n    body.append('body', this.inputEl?.value ?? '');\n\n    fetch('/play/fmt', {\n      method: 'POST',\n      body: body,\n    })\n      .then(res => res.json())\n      .then(({ Body, Error }) => {\n        this.setOutputText(Error || 'Done.');\n        if (Body) {\n          this.setInputText(Body);\n          this.resize();\n        }\n      })\n      .catch(err => {\n        this.setErrorText(err);\n      });\n  }\n\n  /**\n   * Runs the code snippet in the example playground.\n   */\n  private handleRunButtonClick() {\n    this.setOutputText('Waiting for remote server\u2026');\n\n    fetch('/play/compile', {\n      method: 'POST',\n      body: JSON.stringify({ body: this.inputEl?.value, version: 2 }),\n    })\n      .then(res => res.json())\n      .then(async ({ Events, Errors }) => {\n        this.setOutputText(Errors || '');\n        for (const e of Events || []) {\n          this.setOutputText(e.Message);\n          await new Promise(resolve => setTimeout(resolve, e.Delay / 1000000));\n        }\n      })\n      .catch(err => {\n        this.setErrorText(err);\n      });\n  }\n}\n\nexport function initPlaygrounds(): void {\n  const exampleHashRegex = location.hash.match(/^#(example-.*)$/);\n  if (exampleHashRegex) {\n    const exampleHashEl = document.getElementById(exampleHashRegex[1]) as HTMLDetailsElement;\n    if (exampleHashEl) {\n      exampleHashEl.open = true;\n    }\n  }\n\n  // We use a spread operator to convert a nodelist into an array of elements.\n  const exampleHrefs = [\n    ...document.querySelectorAll<HTMLAnchorElement>(PlayExampleClassName.PLAY_HREF),\n  ];\n\n  /**\n   * Sometimes exampleHrefs and playContainers are in different order, so we\n   * find an exampleHref from a common hash.\n   * @param playContainer - playground container\n   */\n  const findExampleHash = (playContainer: PlaygroundExampleController) =>\n    exampleHrefs.find(ex => {\n      return ex.hash === playContainer.getAnchorHash();\n    });\n\n  for (const el of document.querySelectorAll(PlayExampleClassName.PLAY_CONTAINER)) {\n    // There should be the same amount of hrefs referencing examples as example containers.\n    const playContainer = new PlaygroundExampleController(el as HTMLDetailsElement);\n    const exampleHref = findExampleHash(playContainer);\n    if (exampleHref) {\n      exampleHref.addEventListener('click', () => {\n        playContainer.expand();\n      });\n    } else {\n      console.warn('example href not found');\n    }\n  }\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\nimport { TreeNavController } from './tree.js';\n\nexport class SelectNavController {\n  constructor(private el: Element) {\n    this.el.addEventListener('change', e => {\n      const target = e.target as HTMLSelectElement;\n      let href = target.value;\n      if (!target.value.startsWith('/')) {\n        href = '/' + href;\n      }\n      window.location.href = href;\n    });\n  }\n}\n\nexport function makeSelectNav(tree: TreeNavController): HTMLLabelElement {\n  const label = document.createElement('label');\n  label.classList.add('go-Label');\n  label.setAttribute('aria-label', 'Menu');\n  const select = document.createElement('select');\n  select.classList.add('go-Select', 'js-selectNav');\n  label.appendChild(select);\n  const outline = document.createElement('optgroup');\n  outline.label = 'Outline';\n  select.appendChild(outline);\n  const groupMap: Record<string, HTMLOptGroupElement> = {};\n  let group: HTMLOptGroupElement;\n  for (const t of tree.treeitems) {\n    if (Number(t.depth) > 4) continue;\n    if (t.groupTreeitem) {\n      group = groupMap[t.groupTreeitem.label];\n      if (!group) {\n        group = groupMap[t.groupTreeitem.label] = document.createElement('optgroup');\n        group.label = t.groupTreeitem.label;\n        select.appendChild(group);\n      }\n    } else {\n      group = outline;\n    }\n    const o = document.createElement('option');\n    o.label = t.label;\n    o.textContent = t.label;\n    o.value = (t.el as HTMLAnchorElement).href.replace(window.location.origin, '').replace('/', '');\n    group.appendChild(o);\n  }\n  tree.addObserver(t => {\n    const hash = (t.el as HTMLAnchorElement).hash;\n    const value = select.querySelector<HTMLOptionElement>(`[value$=\"${hash}\"]`)?.value;\n    if (value) {\n      select.value = value;\n    }\n  }, 50);\n  return label;\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * TreeNavController is the navigation tree component of the documentation page.\n * It adds accessiblity attributes to a tree, observes the heading elements\n * focus the topmost link for headings visible on the page, and implements the\n * WAI-ARIA Treeview Design Pattern with full\n * [keyboard support](https://www.w3.org/TR/wai-aria-practices/examples/treeview/treeview-2/treeview-2a.html#kbd_label).\n */\nexport class TreeNavController {\n  treeitems: TreeItem[];\n\n  /**\n   * firstChars is the first character of each treeitem in the same order\n   * as this.treeitems. We use this array to set focus by character when\n   * navigating the tree with a keyboard.\n   */\n  private firstChars: string[];\n  private firstTreeitem: TreeItem | null;\n  private lastTreeitem: TreeItem | null;\n  private observerCallbacks: ((t: TreeItem) => void)[];\n\n  constructor(private el: HTMLElement) {\n    this.treeitems = [];\n    this.firstChars = [];\n    this.firstTreeitem = null;\n    this.lastTreeitem = null;\n    this.observerCallbacks = [];\n    this.init();\n  }\n\n  private init(): void {\n    this.handleResize();\n    window.addEventListener('resize', this.handleResize);\n    this.findTreeItems();\n    this.updateVisibleTreeitems();\n    this.observeTargets();\n    if (this.firstTreeitem) {\n      this.firstTreeitem.el.tabIndex = 0;\n    }\n  }\n\n  private handleResize = (): void => {\n    this.el.style.setProperty('--js-tree-height', '100vh');\n    this.el.style.setProperty('--js-tree-height', this.el.clientHeight + 'px');\n  };\n\n  private observeTargets() {\n    this.addObserver(treeitem => {\n      this.expandTreeitem(treeitem);\n      this.setSelected(treeitem);\n      // TODO: Fix scroll issue in https://golang.org/issue/47450.\n      // treeitem.el.scrollIntoView({ block: 'nearest' });\n    });\n\n    const targets = new Map<string, boolean>();\n    const observer = new IntersectionObserver(\n      entries => {\n        for (const entry of entries) {\n          targets.set(entry.target.id, entry.isIntersecting || entry.intersectionRatio === 1);\n        }\n        for (const [id, isIntersecting] of targets) {\n          if (isIntersecting) {\n            const active = this.treeitems.find(t =>\n              (t.el as HTMLAnchorElement)?.href.endsWith(`#${id}`)\n            );\n            if (active) {\n              for (const fn of this.observerCallbacks) {\n                fn(active);\n              }\n            }\n            break;\n          }\n        }\n      },\n      {\n        threshold: 1.0,\n        rootMargin: '-60px 0px 0px 0px',\n      }\n    );\n\n    for (const href of this.treeitems.map(t => t.el.getAttribute('href'))) {\n      if (href) {\n        const id = href.replace(window.location.origin, '').replace('/', '').replace('#', '');\n        const target = document.getElementById(id);\n        if (target) {\n          observer.observe(target);\n        }\n      }\n    }\n  }\n\n  addObserver(fn: (t: TreeItem) => void, delay = 200): void {\n    this.observerCallbacks.push(debounce(fn, delay));\n  }\n\n  setFocusToNextItem(currentItem: TreeItem): void {\n    let nextItem = null;\n    for (let i = currentItem.index + 1; i < this.treeitems.length; i++) {\n      const ti = this.treeitems[i];\n      if (ti.isVisible) {\n        nextItem = ti;\n        break;\n      }\n    }\n    if (nextItem) {\n      this.setFocusToItem(nextItem);\n    }\n  }\n\n  setFocusToPreviousItem(currentItem: TreeItem): void {\n    let prevItem = null;\n    for (let i = currentItem.index - 1; i > -1; i--) {\n      const ti = this.treeitems[i];\n      if (ti.isVisible) {\n        prevItem = ti;\n        break;\n      }\n    }\n    if (prevItem) {\n      this.setFocusToItem(prevItem);\n    }\n  }\n\n  setFocusToParentItem(currentItem: TreeItem): void {\n    if (currentItem.groupTreeitem) {\n      this.setFocusToItem(currentItem.groupTreeitem);\n    }\n  }\n\n  setFocusToFirstItem(): void {\n    this.firstTreeitem && this.setFocusToItem(this.firstTreeitem);\n  }\n\n  setFocusToLastItem(): void {\n    this.lastTreeitem && this.setFocusToItem(this.lastTreeitem);\n  }\n\n  setSelected(currentItem: TreeItem): void {\n    for (const l1 of this.el.querySelectorAll('[aria-expanded=\"true\"]')) {\n      if (l1 === currentItem.el) continue;\n      if (!l1.nextElementSibling?.contains(currentItem.el)) {\n        l1.setAttribute('aria-expanded', 'false');\n      }\n    }\n    for (const l1 of this.el.querySelectorAll('[aria-selected]')) {\n      if (l1 !== currentItem.el) {\n        l1.setAttribute('aria-selected', 'false');\n      }\n    }\n    currentItem.el.setAttribute('aria-selected', 'true');\n    this.updateVisibleTreeitems();\n    this.setFocusToItem(currentItem, false);\n  }\n\n  expandTreeitem(treeitem: TreeItem): void {\n    let currentItem: TreeItem | null = treeitem;\n    while (currentItem) {\n      if (currentItem.isExpandable) {\n        currentItem.el.setAttribute('aria-expanded', 'true');\n      }\n      currentItem = currentItem.groupTreeitem;\n    }\n    this.updateVisibleTreeitems();\n  }\n\n  expandAllSiblingItems(currentItem: TreeItem): void {\n    for (const ti of this.treeitems) {\n      if (ti.groupTreeitem === currentItem.groupTreeitem && ti.isExpandable) {\n        this.expandTreeitem(ti);\n      }\n    }\n  }\n\n  collapseTreeitem(currentItem: TreeItem): void {\n    let groupTreeitem = null;\n\n    if (currentItem.isExpanded()) {\n      groupTreeitem = currentItem;\n    } else {\n      groupTreeitem = currentItem.groupTreeitem;\n    }\n\n    if (groupTreeitem) {\n      groupTreeitem.el.setAttribute('aria-expanded', 'false');\n      this.updateVisibleTreeitems();\n      this.setFocusToItem(groupTreeitem);\n    }\n  }\n\n  setFocusByFirstCharacter(currentItem: TreeItem, char: string): void {\n    let start: number, index: number;\n    char = char.toLowerCase();\n\n    // Get start index for search based on position of currentItem\n    start = currentItem.index + 1;\n    if (start === this.treeitems.length) {\n      start = 0;\n    }\n\n    // Check remaining slots in the menu\n    index = this.getIndexFirstChars(start, char);\n\n    // If not found in remaining slots, check from beginning\n    if (index === -1) {\n      index = this.getIndexFirstChars(0, char);\n    }\n\n    // If match was found...\n    if (index > -1) {\n      this.setFocusToItem(this.treeitems[index]);\n    }\n  }\n\n  private findTreeItems() {\n    const findItems = (el: HTMLElement, group: TreeItem | null) => {\n      let ti = group;\n      let curr = el.firstElementChild as HTMLElement;\n      while (curr) {\n        if (curr.tagName === 'A' || curr.tagName === 'SPAN') {\n          ti = new TreeItem(curr, this, group);\n          this.treeitems.push(ti);\n          this.firstChars.push(ti.label.substring(0, 1).toLowerCase());\n        }\n        if (curr.firstElementChild) {\n          findItems(curr, ti);\n        }\n        curr = curr.nextElementSibling as HTMLElement;\n      }\n    };\n    findItems(this.el as HTMLElement, null);\n    this.treeitems.map((ti, idx) => (ti.index = idx));\n  }\n\n  private updateVisibleTreeitems(): void {\n    this.firstTreeitem = this.treeitems[0];\n\n    for (const ti of this.treeitems) {\n      let parent = ti.groupTreeitem;\n      ti.isVisible = true;\n      while (parent && parent.el !== this.el) {\n        if (!parent.isExpanded()) {\n          ti.isVisible = false;\n        }\n        parent = parent.groupTreeitem;\n      }\n      if (ti.isVisible) {\n        this.lastTreeitem = ti;\n      }\n    }\n  }\n\n  private setFocusToItem(treeitem: TreeItem, focusEl = true) {\n    treeitem.el.tabIndex = 0;\n    if (focusEl) {\n      treeitem.el.focus();\n    }\n    for (const ti of this.treeitems) {\n      if (ti !== treeitem) {\n        ti.el.tabIndex = -1;\n      }\n    }\n  }\n\n  private getIndexFirstChars(startIndex: number, char: string): number {\n    for (let i = startIndex; i < this.firstChars.length; i++) {\n      if (this.treeitems[i].isVisible && char === this.firstChars[i]) {\n        return i;\n      }\n    }\n    return -1;\n  }\n}\n\nclass TreeItem {\n  el: HTMLElement;\n  groupTreeitem: TreeItem | null;\n  label: string;\n  isExpandable: boolean;\n  isVisible: boolean;\n  depth: number;\n  index: number;\n\n  private tree: TreeNavController;\n  private isInGroup: boolean;\n\n  constructor(el: HTMLElement, treeObj: TreeNavController, group: TreeItem | null) {\n    el.tabIndex = -1;\n    this.el = el;\n    this.groupTreeitem = group;\n    this.label = el.textContent?.trim() ?? '';\n    this.tree = treeObj;\n    this.depth = (group?.depth || 0) + 1;\n    this.index = 0;\n\n    const parent = el.parentElement;\n    if (parent?.tagName.toLowerCase() === 'li') {\n      parent?.setAttribute('role', 'none');\n    }\n    el.setAttribute('aria-level', this.depth + '');\n    if (el.getAttribute('aria-label')) {\n      this.label = el?.getAttribute('aria-label')?.trim() ?? '';\n    }\n\n    this.isExpandable = false;\n    this.isVisible = false;\n    this.isInGroup = !!group;\n\n    let curr = el.nextElementSibling;\n    while (curr) {\n      if (curr.tagName.toLowerCase() == 'ul') {\n        const groupId = `${group?.label ?? ''} nav group ${this.label}`.replace(/[\\W_]+/g, '_');\n        el.setAttribute('aria-owns', groupId);\n        el.setAttribute('aria-expanded', 'false');\n        curr.setAttribute('role', 'group');\n        curr.setAttribute('id', groupId);\n        this.isExpandable = true;\n        break;\n      }\n\n      curr = curr.nextElementSibling;\n    }\n    this.init();\n  }\n\n  private init() {\n    this.el.tabIndex = -1;\n    if (!this.el.getAttribute('role')) {\n      this.el.setAttribute('role', 'treeitem');\n    }\n    this.el.addEventListener('keydown', this.handleKeydown.bind(this));\n    this.el.addEventListener('click', this.handleClick.bind(this));\n    this.el.addEventListener('focus', this.handleFocus.bind(this));\n    this.el.addEventListener('blur', this.handleBlur.bind(this));\n  }\n\n  isExpanded() {\n    if (this.isExpandable) {\n      return this.el.getAttribute('aria-expanded') === 'true';\n    }\n\n    return false;\n  }\n\n  isSelected() {\n    return this.el.getAttribute('aria-selected') === 'true';\n  }\n\n  private handleClick(event: MouseEvent) {\n    // only process click events that directly happened on this treeitem\n    if (event.target !== this.el && event.target !== this.el.firstElementChild) {\n      return;\n    }\n    if (this.isExpandable) {\n      if (this.isExpanded() && this.isSelected()) {\n        this.tree.collapseTreeitem(this);\n      } else {\n        this.tree.expandTreeitem(this);\n      }\n      event.stopPropagation();\n    }\n    this.tree.setSelected(this);\n  }\n\n  private handleFocus() {\n    let el = this.el;\n    if (this.isExpandable) {\n      el = (el.firstElementChild as HTMLElement) ?? el;\n    }\n    el.classList.add('focus');\n  }\n\n  private handleBlur() {\n    let el = this.el;\n    if (this.isExpandable) {\n      el = (el.firstElementChild as HTMLElement) ?? el;\n    }\n    el.classList.remove('focus');\n  }\n\n  private handleKeydown(event: KeyboardEvent) {\n    if (event.altKey || event.ctrlKey || event.metaKey) {\n      return;\n    }\n\n    let captured = false;\n    switch (event.key) {\n      case ' ':\n      case 'Enter':\n        if (this.isExpandable) {\n          if (this.isExpanded() && this.isSelected()) {\n            this.tree.collapseTreeitem(this);\n          } else {\n            this.tree.expandTreeitem(this);\n          }\n          captured = true;\n        } else {\n          event.stopPropagation();\n        }\n        this.tree.setSelected(this);\n        break;\n\n      case 'ArrowUp':\n        this.tree.setFocusToPreviousItem(this);\n        captured = true;\n        break;\n\n      case 'ArrowDown':\n        this.tree.setFocusToNextItem(this);\n        captured = true;\n        break;\n\n      case 'ArrowRight':\n        if (this.isExpandable) {\n          if (this.isExpanded()) {\n            this.tree.setFocusToNextItem(this);\n          } else {\n            this.tree.expandTreeitem(this);\n          }\n        }\n        captured = true;\n        break;\n\n      case 'ArrowLeft':\n        if (this.isExpandable && this.isExpanded()) {\n          this.tree.collapseTreeitem(this);\n          captured = true;\n        } else {\n          if (this.isInGroup) {\n            this.tree.setFocusToParentItem(this);\n            captured = true;\n          }\n        }\n        break;\n\n      case 'Home':\n        this.tree.setFocusToFirstItem();\n        captured = true;\n        break;\n\n      case 'End':\n        this.tree.setFocusToLastItem();\n        captured = true;\n        break;\n\n      default:\n        if (event.key.length === 1 && event.key.match(/\\S/)) {\n          if (event.key == '*') {\n            this.tree.expandAllSiblingItems(this);\n          } else {\n            this.tree.setFocusByFirstCharacter(this, event.key);\n          }\n          captured = true;\n        }\n        break;\n    }\n\n    if (captured) {\n      event.stopPropagation();\n      event.preventDefault();\n    }\n  }\n}\n\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nfunction debounce<T extends (...args: any[]) => any>(func: T, wait: number) {\n  let timeout: ReturnType<typeof setTimeout> | null;\n  return (...args: Parameters<T>) => {\n    const later = () => {\n      timeout = null;\n      func(...args);\n    };\n    if (timeout) {\n      clearTimeout(timeout);\n    }\n    timeout = setTimeout(later, wait);\n  };\n}\n", "/*!\n * @license\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/**\n * Controller for a table element with expandable rows. 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This will expand\n * deprecated symbols when they are navigated to from the index\n * or a direct link.\n */\nfunction openDeprecatedSymbol() {\n  if (!location.hash) return;\n  const heading = document.getElementById(location.hash.slice(1));\n  const grandParent = heading?.parentElement?.parentElement as HTMLDetailsElement | null;\n  if (grandParent?.nodeName === 'DETAILS') {\n    grandParent.open = true;\n  }\n}\nopenDeprecatedSymbol();\nwindow.addEventListener('hashchange', () => openDeprecatedSymbol());\n\n/**\n * Listen for changes in the build context dropdown.\n */\ndocument.querySelectorAll('.js-buildContextSelect').forEach(el => {\n  el.addEventListener('change', e => {\n    window.location.search = `?GOOS=${(e.target as HTMLSelectElement).value}`;\n  });\n});\n"],
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50rem){.UnitMeta-detailsLearn{width:initial}}.UnitOutline-jumpTo{display:flex;margin-bottom:1rem}.UnitOutline-jumpTo button{background-color:var(--color-background);border:var(--border);border-radius:.25rem;color:var(--color-text-subtle);cursor:pointer;height:2rem;padding-left:1rem;text-align:left;width:100%}.UnitOutline-jumpTo button:hover:not([disabled]){border-color:var(--color-border)}.UnitOutline-jumpToInput:disabled{background-color:var(--gray-9)}.Overview-readmeContent details{display:block}.Overview-readmeContent summary{display:list-item}.Overview-readmeContent a{background-color:initial}.Overview-readmeContent a:active,.Overview-readmeContent a:hover{outline-width:0}.Overview-readmeContent strong{font-weight:inherit;font-weight:bolder}.Overview-readmeContent h3{font-size:2em;margin:.67em 0}.Overview-readmeContent img{border-style:none}.Overview-readmeContent code,.Overview-readmeContent kbd,.Overview-readmeContent pre{font-family:monospace,monospace;font-size:1em}.Overview-readmeContent hr{box-sizing:initial;height:0;overflow:visible}.Overview-readmeContent input{font:inherit;margin:0}.Overview-readmeContent input{overflow:visible}.Overview-readmeContent [type=checkbox]{box-sizing:border-box;padding:0}.Overview-readmeContent *{box-sizing:border-box}.Overview-readmeContent input{font-family:inherit;font-size:inherit;line-height:inherit}.Overview-readmeContent a{color:var(--color-brand-primary);text-decoration:none}.Overview-readmeContent a:hover{text-decoration:underline}.Overview-readmeContent strong{font-weight:600}.Overview-readmeContent hr{height:0;margin:.9375rem 0;overflow:hidden;background:transparent;border:0;border-bottom:var(--border)}.Overview-readmeContent hr:after,.Overview-readmeContent hr:before{display:table;content:""}.Overview-readmeContent hr:after{clear:both}.Overview-readmeContent table{border-spacing:0;border-collapse:collapse}.Overview-readmeContent td,.Overview-readmeContent th{padding:0}.Overview-readmeContent details summary{cursor:pointer}.Overview-readmeContent kbd{display:inline-block;padding:.1875rem .3125rem;font:.6875rem SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;line-height:.625rem;color:#444d56;vertical-align:middle;background-color:var(--color-background-accented);border:var(--border);border-radius:.1875rem;box-shadow:inset 0 -.0625rem 0 var(--border)}.Overview-readmeContent h3,.Overview-readmeContent h4,.Overview-readmeContent h5,.Overview-readmeContent h6,.Overview-readmeContent div[aria-level="7"],.Overview-readmeContent div[aria-level="8"]{margin-top:0;margin-bottom:0}.Overview-readmeContent h3{font-size:2rem}.Overview-readmeContent h3,.Overview-readmeContent h4{font-weight:600}.Overview-readmeContent h4{font-size:1.5rem}.Overview-readmeContent h5{font-size:1.25rem}.Overview-readmeContent h5,.Overview-readmeContent h6{font-weight:600}.Overview-readmeContent h6{font-size:1rem}.Overview-readmeContent div[aria-level="7"]{font-size:.875rem}.Overview-readmeContent div[aria-level="7"],.Overview-readmeContent div[aria-level="8"]{font-weight:600}.Overview-readmeContent div[aria-level="8"]{font-size:.75rem}.Overview-readmeContent p{margin-top:0;margin-bottom:.625rem}.Overview-readmeContent blockquote{margin:0}.Overview-readmeContent ol,.Overview-readmeContent ul{padding-left:0;margin-top:0;margin-bottom:0}.Overview-readmeContent ol ol,.Overview-readmeContent ul ol{list-style-type:lower-roman}.Overview-readmeContent ol ol ol,.Overview-readmeContent ol ul ol,.Overview-readmeContent ul ol ol,.Overview-readmeContent ul ul ol{list-style-type:lower-alpha}.Overview-readmeContent dd{margin-left:0}.Overview-readmeContent code,.Overview-readmeContent pre{font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;font-size:.75rem}.Overview-readmeContent pre{margin-top:0;margin-bottom:0}.Overview-readmeContent input::-webkit-inner-spin-button,.Overview-readmeContent input::-webkit-outer-spin-button{margin:0;-webkit-appearance:none;appearance:none}.Overview-readmeContent :checked+.radio-label{position:relative;z-index:1;border-color:var(--color-brand-primary)}.Overview-readmeContent hr{border-bottom-color:var(--color-border)}.Overview-readmeContent kbd{display:inline-block;padding:.1875rem .3125rem;font:.6875rem SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace;line-height:.625rem;color:#444d56;vertical-align:middle;background-color:var(--color-background-accented);border:var(--border);border-radius:.1875rem;box-shadow:inset 0 -.0625rem 0 var(--color-border)}.Overview-readmeContent a:not([href]){color:inherit;text-decoration:none}.Overview-readmeContent blockquote,.Overview-readmeContent details,.Overview-readmeContent dl,.Overview-readmeContent ol,.Overview-readmeContent p,.Overview-readmeContent pre,.Overview-readmeContent table,.Overview-readmeContent ul{margin-top:0;margin-bottom:1rem}.Overview-readmeContent hr{height:.25em;padding:0;margin:1.5rem 0;background-color:var(--color-border);border:0}.Overview-readmeContent blockquote{padding:0 1em;color:var(--color-text-subtle);border-left:.25em solid var(--color-border)}.Overview-readmeContent blockquote>:first-child{margin-top:0}.Overview-readmeContent blockquote>:last-child{margin-bottom:0}.Overview-readmeContent h3,.Overview-readmeContent h4,.Overview-readmeContent h5,.Overview-readmeContent h6,.Overview-readmeContent div[aria-level="7"],.Overview-readmeContent div[aria-level="8"]{margin-top:1.5rem;margin-bottom:1rem;font-weight:600;line-height:1.25}.Overview-readmeContent h3{font-size:2em}.Overview-readmeContent h3,.Overview-readmeContent h4{padding-bottom:.3em;border-bottom:var(--border)}.Overview-readmeContent h4{font-size:1.5em}.Overview-readmeContent h5{font-size:1.25em}.Overview-readmeContent h6{font-size:1em}.Overview-readmeContent div[aria-level="7"]{font-size:.875em}.Overview-readmeContent div[aria-level="8"]{font-size:.85em;color:var(--color-text-subtle)}.Overview-readmeContent ol,.Overview-readmeContent ul{padding-left:2em}.Overview-readmeContent ol ol,.Overview-readmeContent ol ul,.Overview-readmeContent ul ol,.Overview-readmeContent ul ul{margin-top:0;margin-bottom:0}.Overview-readmeContent li{word-wrap:break-all}.Overview-readmeContent li>p{margin-top:1rem}.Overview-readmeContent li+li{margin-top:.25em}.Overview-readmeContent dl{padding:0}.Overview-readmeContent dl dt{padding:0;margin-top:1rem;font-size:1em;font-style:italic;font-weight:600}.Overview-readmeContent dl dd{padding:0 1rem;margin-bottom:1rem}.Overview-readmeContent table{display:block;width:100%;overflow:auto}.Overview-readmeContent table th{font-weight:600}.Overview-readmeContent table td,.Overview-readmeContent table th{padding:.375rem .8125rem;border:var(--border)}.Overview-readmeContent table tr{background-color:var(--color-background);border-top:var(--border)}.Overview-readmeContent table tr:nth-child(2n){background-color:var(--color-background-accented)}.Overview-readmeContent img{max-width:100%;box-sizing:initial;background-color:var(--color-background)}.Overview-readmeContent img[align=right]{padding-left:1.25rem}.Overview-readmeContent img[align=left]{padding-right:1.25rem}.Overview-readmeContent code{padding:.2em .4em;margin:0;font-size:85%;background-color:var(--color-background-accented);border-radius:.1875rem}.Overview-readmeContent pre{word-wrap:normal}.Overview-readmeContent pre>code{padding:0;margin:0;font-size:100%;word-break:normal;white-space:pre;background:transparent;border:0}.Overview-readmeContent pre{padding:1rem;overflow:auto;font-size:85%;line-height:1.45;background-color:var(--color-background-accented);border-radius:.1875rem}.Overview-readmeContent pre code{display:inline;max-width:auto;padding:0;margin:0;overflow:visible;line-height:inherit;word-wrap:normal;background-color:initial;border:0}.UnitReadme{margin-bottom:2rem}.UnitReadme ul,.UnitReadme ol{list-style:circle}.UnitReadme h2 a.UnitReadme-idLink,.UnitReadme summary a{opacity:0}.UnitReadme h2:hover a,.UnitReadme summary:focus a{opacity:1}.UnitReadme-title{border-bottom:var(--border);font-size:1.375rem;padding-bottom:1rem}.UnitReadme-title img{margin:auto 1rem auto 0}.UnitReadme-content{-webkit-mask-image:linear-gradient(to bottom,black 75%,transparent 100%);mask-image:linear-gradient(to bottom,black 75%,transparent 100%);max-height:20rem;overflow:hidden;position:relative}.UnitReadme-content ul{line-height:1.5rem}.UnitReadme-expandLink{background:none;border:none;color:var(--color-brand-primary);cursor:pointer;padding:0}.UnitReadme-collapseLink{background:none;border:none;color:var(--color-brand-primary);cursor:pointer;display:none;padding:0}.UnitReadme--expanded .UnitReadme-content{-webkit-mask-image:none;mask-image:none;max-height:initial;overflow:initial}.UnitReadme--expanded .UnitReadme-expandLink{display:none}.UnitReadme--expanded .UnitReadme-collapseLink{display:block}.Overview-readmeContent{overflow-wrap:break-word}.UnitDetails{column-gap:2rem;display:grid;grid-template-columns:minmax(0,auto);margin:auto;min-height:32rem}@media only screen and (min-width: 64rem){.UnitDetails{grid-template-columns:15.5rem minmax(30.5rem,43.125rem) minmax(10rem,15.5rem)}}@media only screen and (min-width: 80rem){.UnitDetails{grid-template-columns:15.5rem minmax(43.125rem,60rem) 15.5rem;justify-content:center}}.UnitDetails :target{scroll-margin-top:calc(var(--js-sticky-header-height, 3.5rem) * 2.15)}@media only screen and (min-width: 64rem){.UnitDetails :target{scroll-margin-top:calc(var(--js-sticky-header-height, 3.5rem) * 1.25)}}.UnitDetails :target:not(details,h2){background-color:var(--color-background-highlighted);padding:.25rem}.UnitDetails-meta{order:-1}@media only screen and (min-width: 64rem){.UnitDetails-meta{display:block;margin-top:2rem;order:initial}}.UnitDetails-contentEmpty{align-items:center;background-color:var(--color-background-accented);color:var(--color-text-subtle);display:flex;flex-direction:column;height:15rem;padding-top:1rem;text-align:center}.UnitDetails-contentEmpty img{height:7.8125rem;width:auto}
 /*# sourceMappingURL=main.min.css.map */
diff --git a/static/frontend/unit/main/main.min.css.map b/static/frontend/unit/main/main.min.css.map
index abc9034..871077f 100644
--- a/static/frontend/unit/main/main.min.css.map
+++ b/static/frontend/unit/main/main.min.css.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
-  "sources": ["_build-context.css", "_directories.css", "_doc.css", "_files.css", "_meta.css", "_modals.css", "_outline.css", "_readme_gen.css", "_readme.css", "main.css"],
-  "sourcesContent": ["/*!\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.UnitBuildContext-titleContext label,\n.UnitBuildContext-singleContext {\n  color: var(--color-text-subtle);\n  font-size: 0.875rem;\n}\n.UnitBuildContext-singleContext {\n  padding: 0.35rem 0;\n}\n.UnitBuildContext-titleContext select {\n  border-color: var(--color-border);\n  color: var(--color-text-subtle);\n  margin-left: 0.25rem;\n  min-width: 6rem;\n}\n.UnitBuildContext-titleContext option {\n  color: var(--color-text-subtle);\n}\n.UnitBuildContext-link {\n  display: none;\n}\n@media only screen and (min-width: 30rem) {\n  .UnitBuildContext-link {\n    display: initial;\n  }\n}\n\n.UnitDoc .UnitBuildContext-titleContext {\n  position: relative;\n}\n.UnitDoc .UnitBuildContext-titleContext label,\n.UnitDoc .UnitBuildContext-singleContext {\n  bottom: 0.875rem;\n  position: absolute;\n  right: 0;\n}\n", "/*!\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.UnitDirectories {\n  margin-bottom: 2rem;\n}\n.UnitDirectories h2 a.UnitDirectories-idLink,\n.UnitDirectories summary a {\n  opacity: 0;\n}\n.UnitDirectories h2:hover a,\n.UnitDirectories summary:focus a {\n  opacity: 1;\n}\n.UnitDirectories-title {\n  border-bottom: var(--border);\n  font-size: 1.375rem;\n  margin: 0.5rem 0 0 0;\n  padding-bottom: 1rem;\n}\n.UnitDirectories-title img {\n  margin: auto 1rem auto 0;\n}\n.UnitDirectories-table {\n  border-collapse: collapse;\n  height: 0;\n  table-layout: auto;\n  width: 100%;\n}\n.UnitDirectories-table--tree {\n  margin-top: -2rem;\n}\n.UnitDirectories-tableHeader {\n  background-color: var(--color-background-accented);\n}\n.UnitDirectories-tableHeader--tree {\n  visibility: hidden;\n}\n.UnitDirectories td {\n  border-bottom: var(--border);\n  max-width: 32rem;\n  min-width: 12rem;\n  padding: 0.25rem 1rem;\n  vertical-align: middle;\n  word-break: break-word;\n}\n.UnitDirectories th {\n  padding: 0.5rem 1rem;\n  text-align: left;\n}\n.UnitDirectories tr.hidden {\n  display: none;\n}\n.UnitDirectories tr[aria-controls] {\n  cursor: pointer;\n}\n.UnitDirectories tr[aria-controls]:hover {\n  background-color: var(--color-background-accented);\n}\n.UnitDirectories th.UnitDirectories-toggleHead {\n  font-size: 0;\n  max-width: 0.625rem;\n  padding: 0;\n  width: 0.625rem;\n}\n.UnitDirectories td.UnitDirectories-toggleCell,\nth.UnitDirectories-toggleCell {\n  background-color: var(--background);\n  border: var(--white);\n  max-width: 0.625rem;\n  padding: 0;\n  width: 0.625rem;\n}\n.UnitDirectories-toggleButton {\n  font-size: 1.25rem;\n  left: -0.75rem;\n  margin: 0 0 -1rem -0.875rem;\n  padding: 0;\n  position: absolute;\n  vertical-align: top;\n}\n.UnitDirectories-subSpacer {\n  border-right: var(--border);\n  display: inline;\n  margin-right: 0.875rem;\n  width: 0.0625rem;\n}\n.UnitDirectories-toggleButton[aria-expanded='true'] img {\n  transform: rotate(90deg);\n}\n.UnitDirectories-pathCell {\n  align-items: flex-start;\n  display: flex;\n  flex-direction: column;\n  line-height: 1.75rem;\n  word-break: break-all;\n}\n.UnitDirectories-pathCell > div {\n  position: relative;\n}\n.UnitDirectories-subdirectory {\n  border-left: var(--border);\n  display: flex;\n  flex-direction: column;\n  margin-left: 0.375rem;\n  padding: 0.5rem 1rem;\n}\n.UnitDirectories-mobileSynopsis {\n  display: none;\n  line-height: 1.25rem;\n  margin-top: 0.25rem;\n  word-break: keep-all;\n}\n@media only screen and (max-width: 52rem) {\n  .UnitDirectories-mobileSynopsis {\n    display: initial;\n  }\n  .UnitDirectories-table th.UnitDirectories-desktopSynopsis,\n  .UnitDirectories-table td.UnitDirectories-desktopSynopsis {\n    display: none;\n  }\n}\n.UnitDirectories-expandButton {\n  position: relative;\n}\n.UnitDirectories-expandButton button {\n  background-color: transparent;\n  border: none;\n  bottom: 1rem;\n  color: var(--color-brand-primary);\n  cursor: pointer;\n  display: none;\n  font-size: 0.875rem;\n  position: absolute;\n  right: 0;\n  text-decoration: none;\n}\n.UnitDirectories-badge {\n  border: 0.0625rem solid var(--color-text-subtle);\n  border-radius: 0.125rem;\n  font-size: 0.6875rem;\n  font-weight: 500;\n  line-height: 1rem;\n  margin-left: 0.5rem;\n  margin-top: 0.125rem;\n  padding: 0 0.35rem;\n  text-align: center;\n}\n", "/*!\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/* stylelint-disable no-descending-specificity */\n.UnitDoc {\n  margin-bottom: 2rem;\n  word-break: break-word;\n}\n.UnitDoc h2 a.UnitDoc-idLink,\n.UnitDoc summary a {\n  opacity: 0;\n}\n.UnitDoc h2:hover a,\n.UnitDoc summary:focus a {\n  opacity: 1;\n}\n.UnitDoc-title {\n  border-bottom: var(--border);\n  padding-bottom: 1rem;\n}\n.UnitDoc-title img {\n  margin: auto 1rem auto 0;\n}\n.UnitDoc-emptySection {\n  background-color: var(--color-background-accented);\n  color: var(--gray-2);\n  height: 12.25rem;\n  margin-top: 1.5rem;\n  text-align: center;\n}\n.UnitDoc-emptySection img {\n  height: 7.8125rem;\n  width: auto;\n}\n.UnitDoc-emptySection p {\n  margin: 1rem auto;\n}\n.UnitDoc .Documentation h4 {\n  margin-top: 1.5rem;\n}\n.Documentation {\n  display: block;\n}\n.Documentation p {\n  margin: 1rem 0;\n}\n.Documentation h2,\n.Documentation h3 {\n  margin-top: 1.5rem;\n}\n.Documentation a {\n  text-decoration: none;\n}\n.Documentation a:hover {\n  text-decoration: underline;\n}\n.Documentation h2 a,\n.Documentation h3 a,\n.Documentation h4 a.Documentation-idLink,\n.Documentation summary a {\n  opacity: 0;\n}\n.Documentation a:focus {\n  opacity: 1;\n}\n.Documentation h3 a.Documentation-source {\n  opacity: 1;\n}\n.Documentation h2:hover a,\n.Documentation h3:hover a,\n.Documentation h4:hover a,\n.Documentation summary:hover a,\n.Documentation summary:focus a {\n  opacity: 1;\n}\n.Documentation ul {\n  line-height: 1.5rem;\n  list-style: none;\n  padding-left: 0;\n}\n.Documentation ul ul {\n  padding-left: 2em;\n}\n\n.Documentation pre + pre {\n  margin-top: 0.625rem;\n}\n\n.Documentation .Documentation-declarationLink + pre {\n  border-radius: 0 0 0.3em 0.3em;\n  border-top: var(--border);\n  margin-top: 0;\n}\n.Documentation pre .comment {\n  color: var(--color-code-comment);\n}\n\n.Documentation-toc,\n.Documentation-overview,\n.Documentation-index,\n.Documentation-examples {\n  padding-bottom: 0;\n}\n.Documentation-empty {\n  color: var(--color-text-subtle);\n  margin-top: -0.5rem;\n}\n@media only screen and (min-width: 64rem) {\n  .Documentation-toc {\n    margin-left: 2rem;\n    white-space: nowrap;\n  }\n  .Documentation-toc-columns {\n    columns: 2;\n  }\n}\n.Documentation-toc:empty {\n  display: none;\n}\n.Documentation-tocItem {\n  overflow: hidden;\n  text-overflow: ellipsis;\n}\n\n.Documentation-tocItem--constants,\n.Documentation-tocItem--funcsAndTypes,\n.Documentation-tocItem--functions,\n.Documentation-tocItem--types,\n.Documentation-tocItem--variables,\n.Documentation-tocItem--notes {\n  display: none;\n}\n\n.Documentation-overviewHeader,\n.Documentation-indexHeader,\n.Documentation-constantsHeader,\n.Documentation-variablesHeader,\n.Documentation-examplesHeader,\n.Documentation-filesHeader,\n.Documentation-functionHeader,\n.Documentation-typeHeader,\n.Documentation-typeMethodHeader,\n.Documentation-typeFuncHeader {\n  margin-bottom: 0.5rem;\n}\n\n.Documentation-function h4,\n.Documentation-type h4,\n.Documentation-typeFunc h4,\n.Documentation-typeMethod h4 {\n  align-items: baseline;\n  display: flex;\n  justify-content: space-between;\n}\n.Documentation-sinceVersion {\n  color: var(--color-text-subtle);\n  font-size: 0.9375rem;\n  font-weight: 400;\n}\n\n.Documentation-constants br:last-of-type,\n.Documentation-variables br:last-of-type {\n  display: none;\n}\n\n.Documentation-build {\n  color: var(--color-text-subtle);\n  padding-top: 1.5rem;\n  text-align: right;\n}\n.Documentation-declaration pre {\n  scroll-padding-top: calc(var(--js-sticky-header-height, 3.5rem) + 3.75rem);\n}\n@media only screen and (min-width: 64rem) {\n  .Documentation-declaration pre {\n    scroll-padding-top: calc(var(--js-sticky-header-height, 3.5rem) + 0.75rem);\n  }\n}\n.Documentation-declaration + .Documentation-declaration {\n  margin-top: 0.625rem;\n}\n.Documentation-declarationLink {\n  background-color: var(--color-background-accented);\n  border: var(--border);\n  border-bottom: none;\n  border-radius: 0.3em 0.3em 0 0;\n  display: block;\n  font-size: 0.75rem;\n  line-height: 0.5rem;\n  padding: 0.375rem;\n  text-align: right;\n}\n.Documentation-exampleButtonsContainer {\n  align-items: center;\n  display: flex;\n  justify-content: flex-end;\n  margin-top: 0.5rem;\n}\n.Documentation-examplePlayButton {\n  background-color: var(--white);\n  border: 0.15rem solid var(--turq-med);\n  color: var(--turq-med);\n  cursor: pointer;\n  flex-shrink: 0;\n  height: 2.5rem;\n  width: 4.125rem;\n}\n.Documentation-exampleRunButton,\n.Documentation-exampleShareButton,\n.Documentation-exampleFormatButton {\n  border: 0.0625rem solid var(--turq-dark);\n  border-radius: 0.25rem;\n  cursor: pointer;\n  height: 2rem;\n  margin-left: 0.5rem;\n  padding: 0 1rem;\n}\n.Documentation-exampleRunButton {\n  background-color: var(--turq-dark);\n  color: var(--white);\n}\n.Documentation-exampleShareButton,\n.Documentation-exampleFormatButton {\n  background-color: var(--white);\n  color: var(--turq-dark);\n}\n.Documentation-exampleDetails {\n  margin-top: 1rem;\n}\n.Documentation-exampleDetailsBody pre {\n  border-radius: 0 0 0.3rem 0.3rem;\n  margin-bottom: 1rem;\n  margin-top: -0.25rem;\n}\n.Documentation-exampleDetailsBody textarea {\n  height: 100%;\n  outline: none;\n  overflow-x: auto;\n  resize: none;\n  white-space: pre;\n  width: 100%;\n}\n\n/**\n * We add another selector here to these two classes to increase CSS specificity,\n * the selector .Documentation pre + pre overrides .Documentation-exampleCode\n * and .Documentation-exampleOutput by itself and would replace the styles.\n */\n.Documentation-exampleDetailsBody .Documentation-exampleCode {\n  border-bottom-left-radius: 0;\n  border-bottom-right-radius: 0;\n  margin: 0;\n}\n.Documentation-exampleDetailsBody .Documentation-exampleOutput {\n  border-top-left-radius: 0;\n  border-top-right-radius: 0;\n  margin: 0 0 0.5rem;\n}\n.Documentation-exampleDetailsHeader {\n  color: var(--color-brand-primary);\n  cursor: pointer;\n  margin-bottom: 2rem;\n  outline: none;\n  text-decoration: none;\n}\n.Documentation-exampleOutputLabel {\n  color: var(--color-text-subtle);\n}\n.Documentation-exampleError {\n  color: var(--pink);\n  margin-right: 0.4rem;\n  padding-right: 0.5rem;\n}\n\n/* See https://golang.org/issue/43368 for context. */\n.Documentation-function pre,\n.Documentation-typeFunc pre,\n.Documentation-typeMethod pre {\n  white-space: pre-wrap;\n  word-break: break-all;\n  word-wrap: break-word;\n}\n\n.Documentation-indexDeprecated {\n  margin-left: 0.5rem;\n}\n.Documentation-deprecatedBody {\n  color: var(--color-text-subtle);\n  font-size: 0.87rem;\n  font-weight: 400;\n  margin-left: 0.25rem;\n  margin-right: 0.5rem;\n}\n.Documentation-deprecatedTag {\n  background-color: var(--color-border);\n  border-radius: 0.125rem;\n  color: var(--color-text-inverted);\n  font-size: 0.75rem;\n  font-weight: normal;\n  line-height: 1.375;\n  padding: 0.125rem 0.25rem;\n  text-transform: uppercase;\n  vertical-align: middle;\n}\n.Documentation-deprecatedTitle {\n  align-items: center;\n  display: flex;\n  gap: 0.5rem;\n}\n.Documentation-deprecatedDetails {\n  color: var(--color-text-subtle);\n}\n.Documentation-deprecatedDetails a {\n  color: var(--color-text-subtle);\n}\n.Documentation-deprecatedDetails[open] {\n  color: var(--color-text);\n}\n.Documentation-deprecatedDetails[open] a {\n  color: var(--color-brand-primary);\n}\n.Documentation-deprecatedDetails .Documentation-deprecatedBody::after {\n  color: var(--color-brand-primary);\n  content: 'Show';\n}\n.Documentation-deprecatedDetails[open] .Documentation-deprecatedBody::after {\n  color: var(--color-brand-primary);\n  content: 'Hide';\n}\n.Documentation-deprecatedDetails > summary {\n  list-style: none;\n  opacity: 1;\n}\n.Documentation-deprecatedDetails .Documentation-source {\n  opacity: 1;\n}\n.Documentation-deprecatedItemBody {\n  padding: 1rem 1rem 0.5rem 1rem;\n}\n.Documentation-deprecatedMessage {\n  align-items: center;\n  display: flex;\n  gap: 0.5rem;\n  margin-bottom: 1rem;\n}\n", "/*!\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.UnitFiles {\n  margin-bottom: 2rem;\n}\n.UnitFiles-titleLink {\n  position: relative;\n}\n.UnitFiles-titleLink a {\n  bottom: 1rem;\n  font-size: 0.875rem;\n  position: absolute;\n  right: 0;\n}\n.UnitFiles-titleLink a::after {\n  background-image: url(/static/shared/icon/launch_gm_grey_24dp.svg);\n  background-repeat: no-repeat;\n  background-size: 0.875rem 1.25rem;\n  content: '';\n  display: inline-block;\n  height: 1rem;\n  left: 0.3125rem;\n  position: relative;\n  top: 0.125rem;\n  width: 1rem;\n}\n.UnitFiles h2 a.UnitFiles-idLink,\n.UnitFiles summary a {\n  opacity: 0;\n}\n.UnitFiles h2:hover a,\n.UnitFiles summary:focus a {\n  opacity: 1;\n}\n.UnitFiles-title {\n  border-bottom: var(--border);\n  font-size: 1.375rem;\n  margin: 0.5rem 0 0 0;\n  padding-bottom: 1rem;\n}\n.UnitFiles-title img {\n  margin: auto 1rem auto 0;\n}\n.UnitFiles-fileList {\n  column-count: 5;\n  column-width: 12.5rem;\n  line-height: 1.5rem;\n  list-style: none;\n  margin-top: 1rem;\n  padding-left: 0;\n  word-break: break-all;\n}\n", "/*!\n* Copyright 2019-2020 The Go Authors. All rights reserved.\n* Use of this source code is governed by a BSD-style\n* license that can be found in the LICENSE file.\n*/\n\n.UnitMeta {\n  display: grid;\n  gap: 1rem 2rem;\n  grid-template-columns: max-content auto;\n  white-space: nowrap;\n}\n.UnitMeta-details,\n.UnitMeta-links {\n  display: flex;\n  flex-flow: wrap;\n  flex-direction: row;\n  gap: 1rem 2rem;\n}\n.UnitMeta-repo {\n  align-items: center;\n  display: flex;\n}\n.UnitMeta-repo a {\n  overflow: hidden;\n  text-overflow: ellipsis;\n}\n@media (min-width: 50rem) {\n  .UnitMeta {\n    grid-template-columns: max-content auto;\n  }\n  .UnitMeta-details,\n  .UnitMeta-links {\n    flex-direction: row;\n  }\n}\n@media (min-width: 112rem) {\n  :root[data-layout='responsive'] .UnitMeta {\n    grid-template-columns: 100%;\n  }\n  :root[data-layout='responsive'] .UnitMeta-details,\n  :root[data-layout='responsive'] .UnitMeta-links {\n    flex-direction: column;\n    white-space: nowrap;\n  }\n}\n.UnitMeta-detailsLearn {\n  width: 100%;\n}\n@media (min-width: 50rem) {\n  .UnitMeta-detailsLearn {\n    width: initial;\n  }\n}\n", "/*!\n* Copyright 2021 The Go Authors. All rights reserved.\n* Use of this source code is governed by a BSD-style\n* license that can be found in the LICENSE file.\n*/\n\n.JumpDialog-body {\n  height: 12rem;\n  overflow-y: auto;\n}\n.JumpDialog-list {\n  display: flex;\n  flex-direction: column;\n}\n.JumpDialog-input {\n  width: 100%;\n}\n.JumpDialog a {\n  padding: 0.25rem;\n  text-decoration: none;\n}\n.JumpDialog .JumpDialog-active {\n  background-color: var(--color-brand-primary);\n  color: var(--white);\n}\n\n.ShortcutsDialog-key {\n  text-align: right;\n}\n.ShortcutsDialog table {\n  padding: 0 1rem;\n}\n\n.ShortcutsDialog td {\n  padding-bottom: 0.5rem;\n  padding-left: 0.5rem;\n}\n\n.ShortcutsDialog-theme span {\n  display: none;\n}\n[data-theme='light'] .ShortcutsDialog-themeLight {\n  display: initial;\n}\n[data-theme='dark'] .ShortcutsDialog-themeDark {\n  display: initial;\n}\n[data-theme=''] .ShortcutsDialog-themeAuto,\n[data-theme='auto'] .ShortcutsDialog-themeAuto {\n  display: initial;\n}\n", "/*!\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.UnitOutline-jumpTo {\n  display: flex;\n  margin-bottom: 1rem;\n}\n.UnitOutline-jumpTo button {\n  background-color: var(--color-background);\n  border: var(--border);\n  border-radius: 0.25rem;\n  color: var(--color-text-subtle);\n  cursor: pointer;\n  height: 2rem;\n  padding-left: 1rem;\n  text-align: left;\n  width: 100%;\n}\n.UnitOutline-jumpTo button:hover:not([disabled]) {\n  border-color: var(--color-border);\n}\n.UnitOutline-jumpToInput:disabled {\n  background-color: var(--gray-9);\n}\n", "/*!\n* Copyright 2019-2020 The Go Authors. All rights reserved.\n* Use of this source code is governed by a BSD-style\n* license that can be found in the LICENSE file.\n*/\n\n/* ---------- */\n/*\n/* The CSS classes below are generated using devtools/cmd/css/main.go\n/* If the generated CSS already exists, the file is overwritten\n/*\n/* ---------- */\n\n.Overview-readmeContent details {\n  display: block;\n}\n.Overview-readmeContent summary {\n  display: list-item;\n}\n.Overview-readmeContent a {\n  background-color: initial;\n}\n.Overview-readmeContent a:active,\n.Overview-readmeContent a:hover {\n  outline-width: 0;\n}\n.Overview-readmeContent strong {\n  font-weight: inherit;\n  font-weight: bolder;\n}\n.Overview-readmeContent h3 {\n  font-size: 2em;\n  margin: 0.67em 0;\n}\n.Overview-readmeContent img {\n  border-style: none;\n}\n.Overview-readmeContent code,\n.Overview-readmeContent kbd,\n.Overview-readmeContent pre {\n  font-family: monospace, monospace;\n  font-size: 1em;\n}\n.Overview-readmeContent hr {\n  box-sizing: initial;\n  height: 0;\n  overflow: visible;\n}\n.Overview-readmeContent input {\n  font: inherit;\n  margin: 0;\n}\n.Overview-readmeContent input {\n  overflow: visible;\n}\n.Overview-readmeContent [type='checkbox'] {\n  box-sizing: border-box;\n  padding: 0;\n}\n.Overview-readmeContent * {\n  box-sizing: border-box;\n}\n.Overview-readmeContent input {\n  font-family: inherit;\n  font-size: inherit;\n  line-height: inherit;\n}\n.Overview-readmeContent a {\n  color: var(--color-brand-primary);\n  text-decoration: none;\n}\n.Overview-readmeContent a:hover {\n  text-decoration: underline;\n}\n.Overview-readmeContent strong {\n  font-weight: 600;\n}\n.Overview-readmeContent hr {\n  height: 0;\n  margin: 0.9375rem 0;\n  overflow: hidden;\n  background: transparent;\n  border: 0;\n  border-bottom: var(--border);\n}\n.Overview-readmeContent hr:after,\n.Overview-readmeContent hr:before {\n  display: table;\n  content: '';\n}\n.Overview-readmeContent hr:after {\n  clear: both;\n}\n.Overview-readmeContent table {\n  border-spacing: 0;\n  border-collapse: collapse;\n}\n.Overview-readmeContent td,\n.Overview-readmeContent th {\n  padding: 0;\n}\n.Overview-readmeContent details summary {\n  cursor: pointer;\n}\n.Overview-readmeContent kbd {\n  display: inline-block;\n  padding: 0.1875rem 0.3125rem;\n  font: 0.6875rem SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;\n  line-height: 0.625rem;\n  color: #444d56;\n  vertical-align: middle;\n  background-color: var(--color-background-accented);\n  border: var(--border);\n  border-radius: 0.1875rem;\n  box-shadow: inset 0 -0.0625rem 0 var(--border);\n}\n.Overview-readmeContent h3,\n.Overview-readmeContent h4,\n.Overview-readmeContent h5,\n.Overview-readmeContent h6,\n.Overview-readmeContent div[aria-level='7'],\n.Overview-readmeContent div[aria-level='8'] {\n  margin-top: 0;\n  margin-bottom: 0;\n}\n.Overview-readmeContent h3 {\n  font-size: 2rem;\n}\n.Overview-readmeContent h3,\n.Overview-readmeContent h4 {\n  font-weight: 600;\n}\n.Overview-readmeContent h4 {\n  font-size: 1.5rem;\n}\n.Overview-readmeContent h5 {\n  font-size: 1.25rem;\n}\n.Overview-readmeContent h5,\n.Overview-readmeContent h6 {\n  font-weight: 600;\n}\n.Overview-readmeContent h6 {\n  font-size: 1rem;\n}\n.Overview-readmeContent div[aria-level='7'] {\n  font-size: 0.875rem;\n}\n.Overview-readmeContent div[aria-level='7'],\n.Overview-readmeContent div[aria-level='8'] {\n  font-weight: 600;\n}\n.Overview-readmeContent div[aria-level='8'] {\n  font-size: 0.75rem;\n}\n.Overview-readmeContent p {\n  margin-top: 0;\n  margin-bottom: 0.625rem;\n}\n.Overview-readmeContent blockquote {\n  margin: 0;\n}\n.Overview-readmeContent ol,\n.Overview-readmeContent ul {\n  padding-left: 0;\n  margin-top: 0;\n  margin-bottom: 0;\n}\n.Overview-readmeContent ol ol,\n.Overview-readmeContent ul ol {\n  list-style-type: lower-roman;\n}\n.Overview-readmeContent ol ol ol,\n.Overview-readmeContent ol ul ol,\n.Overview-readmeContent ul ol ol,\n.Overview-readmeContent ul ul ol {\n  list-style-type: lower-alpha;\n}\n.Overview-readmeContent dd {\n  margin-left: 0;\n}\n.Overview-readmeContent code,\n.Overview-readmeContent pre {\n  font-family: SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;\n  font-size: 0.75rem;\n}\n.Overview-readmeContent pre {\n  margin-top: 0;\n  margin-bottom: 0;\n}\n.Overview-readmeContent input::-webkit-inner-spin-button,\n.Overview-readmeContent input::-webkit-outer-spin-button {\n  margin: 0;\n  -webkit-appearance: none;\n  appearance: none;\n}\n.Overview-readmeContent :checked + .radio-label {\n  position: relative;\n  z-index: 1;\n  border-color: var(--color-brand-primary);\n}\n.Overview-readmeContent hr {\n  border-bottom-color: var(--color-border);\n}\n.Overview-readmeContent kbd {\n  display: inline-block;\n  padding: 0.1875rem 0.3125rem;\n  font: 0.6875rem SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;\n  line-height: 0.625rem;\n  color: #444d56;\n  vertical-align: middle;\n  background-color: var(--color-background-accented);\n  border: var(--border);\n  border-radius: 0.1875rem;\n  box-shadow: inset 0 -0.0625rem 0 var(--color-border);\n}\n.Overview-readmeContent a:not([href]) {\n  color: inherit;\n  text-decoration: none;\n}\n.Overview-readmeContent blockquote,\n.Overview-readmeContent details,\n.Overview-readmeContent dl,\n.Overview-readmeContent ol,\n.Overview-readmeContent p,\n.Overview-readmeContent pre,\n.Overview-readmeContent table,\n.Overview-readmeContent ul {\n  margin-top: 0;\n  margin-bottom: 1rem;\n}\n.Overview-readmeContent hr {\n  height: 0.25em;\n  padding: 0;\n  margin: 1.5rem 0;\n  background-color: var(--color-border);\n  border: 0;\n}\n.Overview-readmeContent blockquote {\n  padding: 0 1em;\n  color: var(--color-text-subtle);\n  border-left: 0.25em solid var(--color-border);\n}\n.Overview-readmeContent blockquote > :first-child {\n  margin-top: 0;\n}\n.Overview-readmeContent blockquote > :last-child {\n  margin-bottom: 0;\n}\n.Overview-readmeContent h3,\n.Overview-readmeContent h4,\n.Overview-readmeContent h5,\n.Overview-readmeContent h6,\n.Overview-readmeContent div[aria-level='7'],\n.Overview-readmeContent div[aria-level='8'] {\n  margin-top: 1.5rem;\n  margin-bottom: 1rem;\n  font-weight: 600;\n  line-height: 1.25;\n}\n.Overview-readmeContent h3 {\n  font-size: 2em;\n}\n.Overview-readmeContent h3,\n.Overview-readmeContent h4 {\n  padding-bottom: 0.3em;\n  border-bottom: var(--border);\n}\n.Overview-readmeContent h4 {\n  font-size: 1.5em;\n}\n.Overview-readmeContent h5 {\n  font-size: 1.25em;\n}\n.Overview-readmeContent h6 {\n  font-size: 1em;\n}\n.Overview-readmeContent div[aria-level='7'] {\n  font-size: 0.875em;\n}\n.Overview-readmeContent div[aria-level='8'] {\n  font-size: 0.85em;\n  color: var(--color-text-subtle);\n}\n.Overview-readmeContent ol,\n.Overview-readmeContent ul {\n  padding-left: 2em;\n}\n.Overview-readmeContent ol ol,\n.Overview-readmeContent ol ul,\n.Overview-readmeContent ul ol,\n.Overview-readmeContent ul ul {\n  margin-top: 0;\n  margin-bottom: 0;\n}\n.Overview-readmeContent li {\n  word-wrap: break-all;\n}\n.Overview-readmeContent li > p {\n  margin-top: 1rem;\n}\n.Overview-readmeContent li + li {\n  margin-top: 0.25em;\n}\n.Overview-readmeContent dl {\n  padding: 0;\n}\n.Overview-readmeContent dl dt {\n  padding: 0;\n  margin-top: 1rem;\n  font-size: 1em;\n  font-style: italic;\n  font-weight: 600;\n}\n.Overview-readmeContent dl dd {\n  padding: 0 1rem;\n  margin-bottom: 1rem;\n}\n.Overview-readmeContent table {\n  display: block;\n  width: 100%;\n  overflow: auto;\n}\n.Overview-readmeContent table th {\n  font-weight: 600;\n}\n.Overview-readmeContent table td,\n.Overview-readmeContent table th {\n  padding: 0.375rem 0.8125rem;\n  border: var(--border);\n}\n.Overview-readmeContent table tr {\n  background-color: var(--color-background);\n  border-top: var(--border);\n}\n.Overview-readmeContent table tr:nth-child(2n) {\n  background-color: var(--color-background-accented);\n}\n.Overview-readmeContent img {\n  max-width: 100%;\n  box-sizing: initial;\n  background-color: var(--color-background);\n}\n.Overview-readmeContent img[align='right'] {\n  padding-left: 1.25rem;\n}\n.Overview-readmeContent img[align='left'] {\n  padding-right: 1.25rem;\n}\n.Overview-readmeContent code {\n  padding: 0.2em 0.4em;\n  margin: 0;\n  font-size: 85%;\n  background-color: var(--color-background-accented);\n  border-radius: 0.1875rem;\n}\n.Overview-readmeContent pre {\n  word-wrap: normal;\n}\n.Overview-readmeContent pre > code {\n  padding: 0;\n  margin: 0;\n  font-size: 100%;\n  word-break: normal;\n  white-space: pre;\n  background: transparent;\n  border: 0;\n}\n.Overview-readmeContent pre {\n  padding: 1rem;\n  overflow: auto;\n  font-size: 85%;\n  line-height: 1.45;\n  background-color: var(--color-background-accented);\n  border-radius: 0.1875rem;\n}\n.Overview-readmeContent pre code {\n  display: inline;\n  max-width: auto;\n  padding: 0;\n  margin: 0;\n  overflow: visible;\n  line-height: inherit;\n  word-wrap: normal;\n  background-color: initial;\n  border: 0;\n}\n\n/* ---------- */\n/*\n/* End output from devtools/cmd/css/main.go\n/*\n/* ---------- */\n", "/*!\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.UnitReadme {\n  margin-bottom: 2rem;\n}\n.UnitReadme ul,\n.UnitReadme ol {\n  list-style: circle;\n}\n.UnitReadme h2 a.UnitReadme-idLink,\n.UnitReadme summary a {\n  opacity: 0;\n}\n.UnitReadme h2:hover a,\n.UnitReadme summary:focus a {\n  opacity: 1;\n}\n.UnitReadme-title {\n  border-bottom: var(--border);\n  font-size: 1.375rem;\n  padding-bottom: 1rem;\n}\n.UnitReadme-title img {\n  margin: auto 1rem auto 0;\n}\n.UnitReadme-content {\n  -webkit-mask-image: linear-gradient(to bottom, black 75%, transparent 100%);\n  mask-image: linear-gradient(to bottom, black 75%, transparent 100%);\n  max-height: 20rem;\n  overflow: hidden;\n  position: relative;\n}\n.UnitReadme-content ul {\n  line-height: 1.5rem;\n}\n.UnitReadme-expandLink {\n  background: none;\n  border: none;\n  color: var(--color-brand-primary);\n  cursor: pointer;\n  padding: 0;\n}\n.UnitReadme-collapseLink {\n  background: none;\n  border: none;\n  color: var(--color-brand-primary);\n  cursor: pointer;\n  display: none;\n  padding: 0;\n}\n.UnitReadme--expanded .UnitReadme-content {\n  -webkit-mask-image: none;\n  mask-image: none;\n  max-height: initial;\n  overflow: initial;\n}\n.UnitReadme--expanded .UnitReadme-expandLink {\n  display: none;\n}\n.UnitReadme--expanded .UnitReadme-collapseLink {\n  display: block;\n}\n\n.Overview-readmeContent {\n  overflow-wrap: break-word;\n}\n", "/*!\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n@import url('./_build-context.css');\n@import url('./_directories.css');\n@import url('./_doc.css');\n@import url('./_files.css');\n@import url('./_meta.css');\n@import url('./_modals.css');\n@import url('./_outline.css');\n@import url('./_readme_gen.css');\n@import url('./_readme.css');\n\n.UnitDetails {\n  column-gap: 2rem;\n  display: grid;\n  grid-template-columns: minmax(0, auto);\n  margin: auto;\n  min-height: 32rem;\n}\n@media only screen and (min-width: 64rem) {\n  .UnitDetails {\n    grid-template-columns: 15.5rem minmax(30.5rem, 43.125rem) minmax(10rem, 15.5rem);\n  }\n}\n@media only screen and (min-width: 80rem) {\n  .UnitDetails {\n    grid-template-columns: 15.5rem minmax(43.125rem, 60rem) 15.5rem;\n    justify-content: center;\n  }\n}\n.UnitDetails :target {\n  scroll-margin-top: calc(var(--js-sticky-header-height, 3.5rem) * 2.15);\n}\n@media only screen and (min-width: 64rem) {\n  .UnitDetails :target {\n    scroll-margin-top: calc(var(--js-sticky-header-height, 3.5rem) * 1.25);\n  }\n}\n\n.UnitDetails :target:not(details, h2) {\n  background-color: var(--color-background-highlighted);\n  padding: 0.25rem;\n}\n.UnitDetails-meta {\n  order: -1;\n}\n@media only screen and (min-width: 64rem) {\n  .UnitDetails-meta {\n    display: block;\n    margin-top: 2rem;\n    order: initial;\n  }\n}\n.UnitDetails-contentEmpty {\n  align-items: center;\n  background-color: var(--color-background-accented);\n  color: var(--color-text-subtle);\n  display: flex;\n  flex-direction: column;\n  height: 15rem;\n  padding-top: 1rem;\n  text-align: center;\n}\n.UnitDetails-contentEmpty img {\n  height: 7.8125rem;\n  width: auto;\n}\n"],
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+  "sources": ["_build-context.css", "_directories.css", "_doc.css", "_files.css", "_meta.css", "_outline.css", "_readme_gen.css", "_readme.css", "main.css"],
+  "sourcesContent": ["/*!\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.UnitBuildContext-titleContext label,\n.UnitBuildContext-singleContext {\n  color: var(--color-text-subtle);\n  font-size: 0.875rem;\n}\n.UnitBuildContext-singleContext {\n  padding: 0.35rem 0;\n}\n.UnitBuildContext-titleContext select {\n  border-color: var(--color-border);\n  color: var(--color-text-subtle);\n  margin-left: 0.25rem;\n  min-width: 6rem;\n}\n.UnitBuildContext-titleContext option {\n  color: var(--color-text-subtle);\n}\n.UnitBuildContext-link {\n  display: none;\n}\n@media only screen and (min-width: 30rem) {\n  .UnitBuildContext-link {\n    display: initial;\n  }\n}\n\n.UnitDoc .UnitBuildContext-titleContext {\n  position: relative;\n}\n.UnitDoc .UnitBuildContext-titleContext label,\n.UnitDoc .UnitBuildContext-singleContext {\n  bottom: 0.875rem;\n  position: absolute;\n  right: 0;\n}\n", "/*!\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.UnitDirectories {\n  margin-bottom: 2rem;\n}\n.UnitDirectories h2 a.UnitDirectories-idLink,\n.UnitDirectories summary a {\n  opacity: 0;\n}\n.UnitDirectories h2:hover a,\n.UnitDirectories summary:focus a {\n  opacity: 1;\n}\n.UnitDirectories-title {\n  border-bottom: var(--border);\n  font-size: 1.375rem;\n  margin: 0.5rem 0 0 0;\n  padding-bottom: 1rem;\n}\n.UnitDirectories-title img {\n  margin: auto 1rem auto 0;\n}\n.UnitDirectories-table {\n  border-collapse: collapse;\n  height: 0;\n  table-layout: auto;\n  width: 100%;\n}\n.UnitDirectories-table--tree {\n  margin-top: -2rem;\n}\n.UnitDirectories-tableHeader {\n  background-color: var(--color-background-accented);\n}\n.UnitDirectories-tableHeader--tree {\n  visibility: hidden;\n}\n.UnitDirectories td {\n  border-bottom: var(--border);\n  max-width: 32rem;\n  min-width: 12rem;\n  padding: 0.25rem 1rem;\n  vertical-align: middle;\n  word-break: break-word;\n}\n.UnitDirectories th {\n  padding: 0.5rem 1rem;\n  text-align: left;\n}\n.UnitDirectories tr.hidden {\n  display: none;\n}\n.UnitDirectories tr[aria-controls] {\n  cursor: pointer;\n}\n.UnitDirectories tr[aria-controls]:hover {\n  background-color: var(--color-background-accented);\n}\n.UnitDirectories th.UnitDirectories-toggleHead {\n  font-size: 0;\n  max-width: 0.625rem;\n  padding: 0;\n  width: 0.625rem;\n}\n.UnitDirectories td.UnitDirectories-toggleCell,\nth.UnitDirectories-toggleCell {\n  background-color: var(--background);\n  border: var(--white);\n  max-width: 0.625rem;\n  padding: 0;\n  width: 0.625rem;\n}\n.UnitDirectories-toggleButton {\n  font-size: 1.25rem;\n  left: -0.75rem;\n  margin: 0 0 -1rem -0.875rem;\n  padding: 0;\n  position: absolute;\n  vertical-align: top;\n}\n.UnitDirectories-subSpacer {\n  border-right: var(--border);\n  display: inline;\n  margin-right: 0.875rem;\n  width: 0.0625rem;\n}\n.UnitDirectories-toggleButton[aria-expanded='true'] img {\n  transform: rotate(90deg);\n}\n.UnitDirectories-pathCell {\n  align-items: flex-start;\n  display: flex;\n  flex-direction: column;\n  line-height: 1.75rem;\n  word-break: break-all;\n}\n.UnitDirectories-pathCell > div {\n  position: relative;\n}\n.UnitDirectories-subdirectory {\n  border-left: var(--border);\n  display: flex;\n  flex-direction: column;\n  margin-left: 0.375rem;\n  padding: 0.5rem 1rem;\n}\n.UnitDirectories-mobileSynopsis {\n  display: none;\n  line-height: 1.25rem;\n  margin-top: 0.25rem;\n  word-break: keep-all;\n}\n@media only screen and (max-width: 52rem) {\n  .UnitDirectories-mobileSynopsis {\n    display: initial;\n  }\n  .UnitDirectories-table th.UnitDirectories-desktopSynopsis,\n  .UnitDirectories-table td.UnitDirectories-desktopSynopsis {\n    display: none;\n  }\n}\n.UnitDirectories-expandButton {\n  position: relative;\n}\n.UnitDirectories-expandButton button {\n  background-color: transparent;\n  border: none;\n  bottom: 1rem;\n  color: var(--color-brand-primary);\n  cursor: pointer;\n  display: none;\n  font-size: 0.875rem;\n  position: absolute;\n  right: 0;\n  text-decoration: none;\n}\n.UnitDirectories-badge {\n  border: 0.0625rem solid var(--color-text-subtle);\n  border-radius: 0.125rem;\n  font-size: 0.6875rem;\n  font-weight: 500;\n  line-height: 1rem;\n  margin-left: 0.5rem;\n  margin-top: 0.125rem;\n  padding: 0 0.35rem;\n  text-align: center;\n}\n", "/*!\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n/* stylelint-disable no-descending-specificity */\n.UnitDoc {\n  margin-bottom: 2rem;\n  word-break: break-word;\n}\n.UnitDoc h2 a.UnitDoc-idLink,\n.UnitDoc summary a {\n  opacity: 0;\n}\n.UnitDoc h2:hover a,\n.UnitDoc summary:focus a {\n  opacity: 1;\n}\n.UnitDoc-title {\n  border-bottom: var(--border);\n  padding-bottom: 1rem;\n}\n.UnitDoc-title img {\n  margin: auto 1rem auto 0;\n}\n.UnitDoc-emptySection {\n  background-color: var(--color-background-accented);\n  color: var(--gray-2);\n  height: 12.25rem;\n  margin-top: 1.5rem;\n  text-align: center;\n}\n.UnitDoc-emptySection img {\n  height: 7.8125rem;\n  width: auto;\n}\n.UnitDoc-emptySection p {\n  margin: 1rem auto;\n}\n.UnitDoc .Documentation h4 {\n  margin-top: 1.5rem;\n}\n.Documentation {\n  display: block;\n}\n.Documentation p {\n  margin: 1rem 0;\n}\n.Documentation h2,\n.Documentation h3 {\n  margin-top: 1.5rem;\n}\n.Documentation a {\n  text-decoration: none;\n}\n.Documentation a:hover {\n  text-decoration: underline;\n}\n.Documentation h2 a,\n.Documentation h3 a,\n.Documentation h4 a.Documentation-idLink,\n.Documentation summary a {\n  opacity: 0;\n}\n.Documentation a:focus {\n  opacity: 1;\n}\n.Documentation h3 a.Documentation-source {\n  opacity: 1;\n}\n.Documentation h2:hover a,\n.Documentation h3:hover a,\n.Documentation h4:hover a,\n.Documentation summary:hover a,\n.Documentation summary:focus a {\n  opacity: 1;\n}\n.Documentation ul {\n  line-height: 1.5rem;\n  list-style: none;\n  padding-left: 0;\n}\n.Documentation ul ul {\n  padding-left: 2em;\n}\n\n.Documentation pre + pre {\n  margin-top: 0.625rem;\n}\n\n.Documentation .Documentation-declarationLink + pre {\n  border-radius: 0 0 0.3em 0.3em;\n  border-top: var(--border);\n  margin-top: 0;\n}\n.Documentation pre .comment {\n  color: var(--color-code-comment);\n}\n\n.Documentation-toc,\n.Documentation-overview,\n.Documentation-index,\n.Documentation-examples {\n  padding-bottom: 0;\n}\n.Documentation-empty {\n  color: var(--color-text-subtle);\n  margin-top: -0.5rem;\n}\n@media only screen and (min-width: 64rem) {\n  .Documentation-toc {\n    margin-left: 2rem;\n    white-space: nowrap;\n  }\n  .Documentation-toc-columns {\n    columns: 2;\n  }\n}\n.Documentation-toc:empty {\n  display: none;\n}\n.Documentation-tocItem {\n  overflow: hidden;\n  text-overflow: ellipsis;\n}\n\n.Documentation-tocItem--constants,\n.Documentation-tocItem--funcsAndTypes,\n.Documentation-tocItem--functions,\n.Documentation-tocItem--types,\n.Documentation-tocItem--variables,\n.Documentation-tocItem--notes {\n  display: none;\n}\n\n.Documentation-overviewHeader,\n.Documentation-indexHeader,\n.Documentation-constantsHeader,\n.Documentation-variablesHeader,\n.Documentation-examplesHeader,\n.Documentation-filesHeader,\n.Documentation-functionHeader,\n.Documentation-typeHeader,\n.Documentation-typeMethodHeader,\n.Documentation-typeFuncHeader {\n  margin-bottom: 0.5rem;\n}\n\n.Documentation-function h4,\n.Documentation-type h4,\n.Documentation-typeFunc h4,\n.Documentation-typeMethod h4 {\n  align-items: baseline;\n  display: flex;\n  justify-content: space-between;\n}\n.Documentation-sinceVersion {\n  color: var(--color-text-subtle);\n  font-size: 0.9375rem;\n  font-weight: 400;\n}\n\n.Documentation-constants br:last-of-type,\n.Documentation-variables br:last-of-type {\n  display: none;\n}\n\n.Documentation-build {\n  color: var(--color-text-subtle);\n  padding-top: 1.5rem;\n  text-align: right;\n}\n.Documentation-declaration pre {\n  scroll-padding-top: calc(var(--js-sticky-header-height, 3.5rem) + 3.75rem);\n}\n@media only screen and (min-width: 64rem) {\n  .Documentation-declaration pre {\n    scroll-padding-top: calc(var(--js-sticky-header-height, 3.5rem) + 0.75rem);\n  }\n}\n.Documentation-declaration + .Documentation-declaration {\n  margin-top: 0.625rem;\n}\n.Documentation-declarationLink {\n  background-color: var(--color-background-accented);\n  border: var(--border);\n  border-bottom: none;\n  border-radius: 0.3em 0.3em 0 0;\n  display: block;\n  font-size: 0.75rem;\n  line-height: 0.5rem;\n  padding: 0.375rem;\n  text-align: right;\n}\n.Documentation-exampleButtonsContainer {\n  align-items: center;\n  display: flex;\n  justify-content: flex-end;\n  margin-top: 0.5rem;\n}\n.Documentation-examplePlayButton {\n  background-color: var(--white);\n  border: 0.15rem solid var(--turq-med);\n  color: var(--turq-med);\n  cursor: pointer;\n  flex-shrink: 0;\n  height: 2.5rem;\n  width: 4.125rem;\n}\n.Documentation-exampleRunButton,\n.Documentation-exampleShareButton,\n.Documentation-exampleFormatButton {\n  border: 0.0625rem solid var(--turq-dark);\n  border-radius: 0.25rem;\n  cursor: pointer;\n  height: 2rem;\n  margin-left: 0.5rem;\n  padding: 0 1rem;\n}\n.Documentation-exampleRunButton {\n  background-color: var(--turq-dark);\n  color: var(--white);\n}\n.Documentation-exampleShareButton,\n.Documentation-exampleFormatButton {\n  background-color: var(--white);\n  color: var(--turq-dark);\n}\n.Documentation-exampleDetails {\n  margin-top: 1rem;\n}\n.Documentation-exampleDetailsBody pre {\n  border-radius: 0 0 0.3rem 0.3rem;\n  margin-bottom: 1rem;\n  margin-top: -0.25rem;\n}\n.Documentation-exampleDetailsBody textarea {\n  height: 100%;\n  outline: none;\n  overflow-x: auto;\n  resize: none;\n  white-space: pre;\n  width: 100%;\n}\n\n/**\n * We add another selector here to these two classes to increase CSS specificity,\n * the selector .Documentation pre + pre overrides .Documentation-exampleCode\n * and .Documentation-exampleOutput by itself and would replace the styles.\n */\n.Documentation-exampleDetailsBody .Documentation-exampleCode {\n  border-bottom-left-radius: 0;\n  border-bottom-right-radius: 0;\n  margin: 0;\n}\n.Documentation-exampleDetailsBody .Documentation-exampleOutput {\n  border-top-left-radius: 0;\n  border-top-right-radius: 0;\n  margin: 0 0 0.5rem;\n}\n.Documentation-exampleDetailsHeader {\n  color: var(--color-brand-primary);\n  cursor: pointer;\n  margin-bottom: 2rem;\n  outline: none;\n  text-decoration: none;\n}\n.Documentation-exampleOutputLabel {\n  color: var(--color-text-subtle);\n}\n.Documentation-exampleError {\n  color: var(--pink);\n  margin-right: 0.4rem;\n  padding-right: 0.5rem;\n}\n\n/* See https://golang.org/issue/43368 for context. */\n.Documentation-function pre,\n.Documentation-typeFunc pre,\n.Documentation-typeMethod pre {\n  white-space: pre-wrap;\n  word-break: break-all;\n  word-wrap: break-word;\n}\n\n.Documentation-indexDeprecated {\n  margin-left: 0.5rem;\n}\n.Documentation-deprecatedBody {\n  color: var(--color-text-subtle);\n  font-size: 0.87rem;\n  font-weight: 400;\n  margin-left: 0.25rem;\n  margin-right: 0.5rem;\n}\n.Documentation-deprecatedTag {\n  background-color: var(--color-border);\n  border-radius: 0.125rem;\n  color: var(--color-text-inverted);\n  font-size: 0.75rem;\n  font-weight: normal;\n  line-height: 1.375;\n  padding: 0.125rem 0.25rem;\n  text-transform: uppercase;\n  vertical-align: middle;\n}\n.Documentation-deprecatedTitle {\n  align-items: center;\n  display: flex;\n  gap: 0.5rem;\n}\n.Documentation-deprecatedDetails {\n  color: var(--color-text-subtle);\n}\n.Documentation-deprecatedDetails a {\n  color: var(--color-text-subtle);\n}\n.Documentation-deprecatedDetails[open] {\n  color: var(--color-text);\n}\n.Documentation-deprecatedDetails[open] a {\n  color: var(--color-brand-primary);\n}\n.Documentation-deprecatedDetails .Documentation-deprecatedBody::after {\n  color: var(--color-brand-primary);\n  content: 'Show';\n}\n.Documentation-deprecatedDetails[open] .Documentation-deprecatedBody::after {\n  color: var(--color-brand-primary);\n  content: 'Hide';\n}\n.Documentation-deprecatedDetails > summary {\n  list-style: none;\n  opacity: 1;\n}\n.Documentation-deprecatedDetails .Documentation-source {\n  opacity: 1;\n}\n.Documentation-deprecatedItemBody {\n  padding: 1rem 1rem 0.5rem 1rem;\n}\n.Documentation-deprecatedMessage {\n  align-items: center;\n  display: flex;\n  gap: 0.5rem;\n  margin-bottom: 1rem;\n}\n", "/*!\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.UnitFiles {\n  margin-bottom: 2rem;\n}\n.UnitFiles-titleLink {\n  position: relative;\n}\n.UnitFiles-titleLink a {\n  bottom: 1rem;\n  font-size: 0.875rem;\n  position: absolute;\n  right: 0;\n}\n.UnitFiles-titleLink a::after {\n  background-image: url(/static/shared/icon/launch_gm_grey_24dp.svg);\n  background-repeat: no-repeat;\n  background-size: 0.875rem 1.25rem;\n  content: '';\n  display: inline-block;\n  height: 1rem;\n  left: 0.3125rem;\n  position: relative;\n  top: 0.125rem;\n  width: 1rem;\n}\n.UnitFiles h2 a.UnitFiles-idLink,\n.UnitFiles summary a {\n  opacity: 0;\n}\n.UnitFiles h2:hover a,\n.UnitFiles summary:focus a {\n  opacity: 1;\n}\n.UnitFiles-title {\n  border-bottom: var(--border);\n  font-size: 1.375rem;\n  margin: 0.5rem 0 0 0;\n  padding-bottom: 1rem;\n}\n.UnitFiles-title img {\n  margin: auto 1rem auto 0;\n}\n.UnitFiles-fileList {\n  column-count: 5;\n  column-width: 12.5rem;\n  line-height: 1.5rem;\n  list-style: none;\n  margin-top: 1rem;\n  padding-left: 0;\n  word-break: break-all;\n}\n", "/*!\n* Copyright 2019-2020 The Go Authors. All rights reserved.\n* Use of this source code is governed by a BSD-style\n* license that can be found in the LICENSE file.\n*/\n\n.UnitMeta {\n  display: grid;\n  gap: 1rem 2rem;\n  grid-template-columns: max-content auto;\n  white-space: nowrap;\n}\n.UnitMeta-details,\n.UnitMeta-links {\n  display: flex;\n  flex-flow: wrap;\n  flex-direction: row;\n  gap: 1rem 2rem;\n}\n.UnitMeta-repo {\n  align-items: center;\n  display: flex;\n}\n.UnitMeta-repo a {\n  overflow: hidden;\n  text-overflow: ellipsis;\n}\n@media (min-width: 50rem) {\n  .UnitMeta {\n    grid-template-columns: max-content auto;\n  }\n  .UnitMeta-details,\n  .UnitMeta-links {\n    flex-direction: row;\n  }\n}\n@media (min-width: 112rem) {\n  :root[data-layout='responsive'] .UnitMeta {\n    grid-template-columns: 100%;\n  }\n  :root[data-layout='responsive'] .UnitMeta-details,\n  :root[data-layout='responsive'] .UnitMeta-links {\n    flex-direction: column;\n    white-space: nowrap;\n  }\n}\n.UnitMeta-detailsLearn {\n  width: 100%;\n}\n@media (min-width: 50rem) {\n  .UnitMeta-detailsLearn {\n    width: initial;\n  }\n}\n", "/*!\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.UnitOutline-jumpTo {\n  display: flex;\n  margin-bottom: 1rem;\n}\n.UnitOutline-jumpTo button {\n  background-color: var(--color-background);\n  border: var(--border);\n  border-radius: 0.25rem;\n  color: var(--color-text-subtle);\n  cursor: pointer;\n  height: 2rem;\n  padding-left: 1rem;\n  text-align: left;\n  width: 100%;\n}\n.UnitOutline-jumpTo button:hover:not([disabled]) {\n  border-color: var(--color-border);\n}\n.UnitOutline-jumpToInput:disabled {\n  background-color: var(--gray-9);\n}\n", "/*!\n* Copyright 2019-2020 The Go Authors. All rights reserved.\n* Use of this source code is governed by a BSD-style\n* license that can be found in the LICENSE file.\n*/\n\n/* ---------- */\n/*\n/* The CSS classes below are generated using devtools/cmd/css/main.go\n/* If the generated CSS already exists, the file is overwritten\n/*\n/* ---------- */\n\n.Overview-readmeContent details {\n  display: block;\n}\n.Overview-readmeContent summary {\n  display: list-item;\n}\n.Overview-readmeContent a {\n  background-color: initial;\n}\n.Overview-readmeContent a:active,\n.Overview-readmeContent a:hover {\n  outline-width: 0;\n}\n.Overview-readmeContent strong {\n  font-weight: inherit;\n  font-weight: bolder;\n}\n.Overview-readmeContent h3 {\n  font-size: 2em;\n  margin: 0.67em 0;\n}\n.Overview-readmeContent img {\n  border-style: none;\n}\n.Overview-readmeContent code,\n.Overview-readmeContent kbd,\n.Overview-readmeContent pre {\n  font-family: monospace, monospace;\n  font-size: 1em;\n}\n.Overview-readmeContent hr {\n  box-sizing: initial;\n  height: 0;\n  overflow: visible;\n}\n.Overview-readmeContent input {\n  font: inherit;\n  margin: 0;\n}\n.Overview-readmeContent input {\n  overflow: visible;\n}\n.Overview-readmeContent [type='checkbox'] {\n  box-sizing: border-box;\n  padding: 0;\n}\n.Overview-readmeContent * {\n  box-sizing: border-box;\n}\n.Overview-readmeContent input {\n  font-family: inherit;\n  font-size: inherit;\n  line-height: inherit;\n}\n.Overview-readmeContent a {\n  color: var(--color-brand-primary);\n  text-decoration: none;\n}\n.Overview-readmeContent a:hover {\n  text-decoration: underline;\n}\n.Overview-readmeContent strong {\n  font-weight: 600;\n}\n.Overview-readmeContent hr {\n  height: 0;\n  margin: 0.9375rem 0;\n  overflow: hidden;\n  background: transparent;\n  border: 0;\n  border-bottom: var(--border);\n}\n.Overview-readmeContent hr:after,\n.Overview-readmeContent hr:before {\n  display: table;\n  content: '';\n}\n.Overview-readmeContent hr:after {\n  clear: both;\n}\n.Overview-readmeContent table {\n  border-spacing: 0;\n  border-collapse: collapse;\n}\n.Overview-readmeContent td,\n.Overview-readmeContent th {\n  padding: 0;\n}\n.Overview-readmeContent details summary {\n  cursor: pointer;\n}\n.Overview-readmeContent kbd {\n  display: inline-block;\n  padding: 0.1875rem 0.3125rem;\n  font: 0.6875rem SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;\n  line-height: 0.625rem;\n  color: #444d56;\n  vertical-align: middle;\n  background-color: var(--color-background-accented);\n  border: var(--border);\n  border-radius: 0.1875rem;\n  box-shadow: inset 0 -0.0625rem 0 var(--border);\n}\n.Overview-readmeContent h3,\n.Overview-readmeContent h4,\n.Overview-readmeContent h5,\n.Overview-readmeContent h6,\n.Overview-readmeContent div[aria-level='7'],\n.Overview-readmeContent div[aria-level='8'] {\n  margin-top: 0;\n  margin-bottom: 0;\n}\n.Overview-readmeContent h3 {\n  font-size: 2rem;\n}\n.Overview-readmeContent h3,\n.Overview-readmeContent h4 {\n  font-weight: 600;\n}\n.Overview-readmeContent h4 {\n  font-size: 1.5rem;\n}\n.Overview-readmeContent h5 {\n  font-size: 1.25rem;\n}\n.Overview-readmeContent h5,\n.Overview-readmeContent h6 {\n  font-weight: 600;\n}\n.Overview-readmeContent h6 {\n  font-size: 1rem;\n}\n.Overview-readmeContent div[aria-level='7'] {\n  font-size: 0.875rem;\n}\n.Overview-readmeContent div[aria-level='7'],\n.Overview-readmeContent div[aria-level='8'] {\n  font-weight: 600;\n}\n.Overview-readmeContent div[aria-level='8'] {\n  font-size: 0.75rem;\n}\n.Overview-readmeContent p {\n  margin-top: 0;\n  margin-bottom: 0.625rem;\n}\n.Overview-readmeContent blockquote {\n  margin: 0;\n}\n.Overview-readmeContent ol,\n.Overview-readmeContent ul {\n  padding-left: 0;\n  margin-top: 0;\n  margin-bottom: 0;\n}\n.Overview-readmeContent ol ol,\n.Overview-readmeContent ul ol {\n  list-style-type: lower-roman;\n}\n.Overview-readmeContent ol ol ol,\n.Overview-readmeContent ol ul ol,\n.Overview-readmeContent ul ol ol,\n.Overview-readmeContent ul ul ol {\n  list-style-type: lower-alpha;\n}\n.Overview-readmeContent dd {\n  margin-left: 0;\n}\n.Overview-readmeContent code,\n.Overview-readmeContent pre {\n  font-family: SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;\n  font-size: 0.75rem;\n}\n.Overview-readmeContent pre {\n  margin-top: 0;\n  margin-bottom: 0;\n}\n.Overview-readmeContent input::-webkit-inner-spin-button,\n.Overview-readmeContent input::-webkit-outer-spin-button {\n  margin: 0;\n  -webkit-appearance: none;\n  appearance: none;\n}\n.Overview-readmeContent :checked + .radio-label {\n  position: relative;\n  z-index: 1;\n  border-color: var(--color-brand-primary);\n}\n.Overview-readmeContent hr {\n  border-bottom-color: var(--color-border);\n}\n.Overview-readmeContent kbd {\n  display: inline-block;\n  padding: 0.1875rem 0.3125rem;\n  font: 0.6875rem SFMono-Regular, Consolas, Liberation Mono, Menlo, monospace;\n  line-height: 0.625rem;\n  color: #444d56;\n  vertical-align: middle;\n  background-color: var(--color-background-accented);\n  border: var(--border);\n  border-radius: 0.1875rem;\n  box-shadow: inset 0 -0.0625rem 0 var(--color-border);\n}\n.Overview-readmeContent a:not([href]) {\n  color: inherit;\n  text-decoration: none;\n}\n.Overview-readmeContent blockquote,\n.Overview-readmeContent details,\n.Overview-readmeContent dl,\n.Overview-readmeContent ol,\n.Overview-readmeContent p,\n.Overview-readmeContent pre,\n.Overview-readmeContent table,\n.Overview-readmeContent ul {\n  margin-top: 0;\n  margin-bottom: 1rem;\n}\n.Overview-readmeContent hr {\n  height: 0.25em;\n  padding: 0;\n  margin: 1.5rem 0;\n  background-color: var(--color-border);\n  border: 0;\n}\n.Overview-readmeContent blockquote {\n  padding: 0 1em;\n  color: var(--color-text-subtle);\n  border-left: 0.25em solid var(--color-border);\n}\n.Overview-readmeContent blockquote > :first-child {\n  margin-top: 0;\n}\n.Overview-readmeContent blockquote > :last-child {\n  margin-bottom: 0;\n}\n.Overview-readmeContent h3,\n.Overview-readmeContent h4,\n.Overview-readmeContent h5,\n.Overview-readmeContent h6,\n.Overview-readmeContent div[aria-level='7'],\n.Overview-readmeContent div[aria-level='8'] {\n  margin-top: 1.5rem;\n  margin-bottom: 1rem;\n  font-weight: 600;\n  line-height: 1.25;\n}\n.Overview-readmeContent h3 {\n  font-size: 2em;\n}\n.Overview-readmeContent h3,\n.Overview-readmeContent h4 {\n  padding-bottom: 0.3em;\n  border-bottom: var(--border);\n}\n.Overview-readmeContent h4 {\n  font-size: 1.5em;\n}\n.Overview-readmeContent h5 {\n  font-size: 1.25em;\n}\n.Overview-readmeContent h6 {\n  font-size: 1em;\n}\n.Overview-readmeContent div[aria-level='7'] {\n  font-size: 0.875em;\n}\n.Overview-readmeContent div[aria-level='8'] {\n  font-size: 0.85em;\n  color: var(--color-text-subtle);\n}\n.Overview-readmeContent ol,\n.Overview-readmeContent ul {\n  padding-left: 2em;\n}\n.Overview-readmeContent ol ol,\n.Overview-readmeContent ol ul,\n.Overview-readmeContent ul ol,\n.Overview-readmeContent ul ul {\n  margin-top: 0;\n  margin-bottom: 0;\n}\n.Overview-readmeContent li {\n  word-wrap: break-all;\n}\n.Overview-readmeContent li > p {\n  margin-top: 1rem;\n}\n.Overview-readmeContent li + li {\n  margin-top: 0.25em;\n}\n.Overview-readmeContent dl {\n  padding: 0;\n}\n.Overview-readmeContent dl dt {\n  padding: 0;\n  margin-top: 1rem;\n  font-size: 1em;\n  font-style: italic;\n  font-weight: 600;\n}\n.Overview-readmeContent dl dd {\n  padding: 0 1rem;\n  margin-bottom: 1rem;\n}\n.Overview-readmeContent table {\n  display: block;\n  width: 100%;\n  overflow: auto;\n}\n.Overview-readmeContent table th {\n  font-weight: 600;\n}\n.Overview-readmeContent table td,\n.Overview-readmeContent table th {\n  padding: 0.375rem 0.8125rem;\n  border: var(--border);\n}\n.Overview-readmeContent table tr {\n  background-color: var(--color-background);\n  border-top: var(--border);\n}\n.Overview-readmeContent table tr:nth-child(2n) {\n  background-color: var(--color-background-accented);\n}\n.Overview-readmeContent img {\n  max-width: 100%;\n  box-sizing: initial;\n  background-color: var(--color-background);\n}\n.Overview-readmeContent img[align='right'] {\n  padding-left: 1.25rem;\n}\n.Overview-readmeContent img[align='left'] {\n  padding-right: 1.25rem;\n}\n.Overview-readmeContent code {\n  padding: 0.2em 0.4em;\n  margin: 0;\n  font-size: 85%;\n  background-color: var(--color-background-accented);\n  border-radius: 0.1875rem;\n}\n.Overview-readmeContent pre {\n  word-wrap: normal;\n}\n.Overview-readmeContent pre > code {\n  padding: 0;\n  margin: 0;\n  font-size: 100%;\n  word-break: normal;\n  white-space: pre;\n  background: transparent;\n  border: 0;\n}\n.Overview-readmeContent pre {\n  padding: 1rem;\n  overflow: auto;\n  font-size: 85%;\n  line-height: 1.45;\n  background-color: var(--color-background-accented);\n  border-radius: 0.1875rem;\n}\n.Overview-readmeContent pre code {\n  display: inline;\n  max-width: auto;\n  padding: 0;\n  margin: 0;\n  overflow: visible;\n  line-height: inherit;\n  word-wrap: normal;\n  background-color: initial;\n  border: 0;\n}\n\n/* ---------- */\n/*\n/* End output from devtools/cmd/css/main.go\n/*\n/* ---------- */\n", "/*!\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n.UnitReadme {\n  margin-bottom: 2rem;\n}\n.UnitReadme ul,\n.UnitReadme ol {\n  list-style: circle;\n}\n.UnitReadme h2 a.UnitReadme-idLink,\n.UnitReadme summary a {\n  opacity: 0;\n}\n.UnitReadme h2:hover a,\n.UnitReadme summary:focus a {\n  opacity: 1;\n}\n.UnitReadme-title {\n  border-bottom: var(--border);\n  font-size: 1.375rem;\n  padding-bottom: 1rem;\n}\n.UnitReadme-title img {\n  margin: auto 1rem auto 0;\n}\n.UnitReadme-content {\n  -webkit-mask-image: linear-gradient(to bottom, black 75%, transparent 100%);\n  mask-image: linear-gradient(to bottom, black 75%, transparent 100%);\n  max-height: 20rem;\n  overflow: hidden;\n  position: relative;\n}\n.UnitReadme-content ul {\n  line-height: 1.5rem;\n}\n.UnitReadme-expandLink {\n  background: none;\n  border: none;\n  color: var(--color-brand-primary);\n  cursor: pointer;\n  padding: 0;\n}\n.UnitReadme-collapseLink {\n  background: none;\n  border: none;\n  color: var(--color-brand-primary);\n  cursor: pointer;\n  display: none;\n  padding: 0;\n}\n.UnitReadme--expanded .UnitReadme-content {\n  -webkit-mask-image: none;\n  mask-image: none;\n  max-height: initial;\n  overflow: initial;\n}\n.UnitReadme--expanded .UnitReadme-expandLink {\n  display: none;\n}\n.UnitReadme--expanded .UnitReadme-collapseLink {\n  display: block;\n}\n\n.Overview-readmeContent {\n  overflow-wrap: break-word;\n}\n", "/*!\n * Copyright 2020 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\n@import url('./_build-context.css');\n@import url('./_directories.css');\n@import url('./_doc.css');\n@import url('./_files.css');\n@import url('./_meta.css');\n@import url('./_outline.css');\n@import url('./_readme_gen.css');\n@import url('./_readme.css');\n\n.UnitDetails {\n  column-gap: 2rem;\n  display: grid;\n  grid-template-columns: minmax(0, auto);\n  margin: auto;\n  min-height: 32rem;\n}\n@media only screen and (min-width: 64rem) {\n  .UnitDetails {\n    grid-template-columns: 15.5rem minmax(30.5rem, 43.125rem) minmax(10rem, 15.5rem);\n  }\n}\n@media only screen and (min-width: 80rem) {\n  .UnitDetails {\n    grid-template-columns: 15.5rem minmax(43.125rem, 60rem) 15.5rem;\n    justify-content: center;\n  }\n}\n.UnitDetails :target {\n  scroll-margin-top: calc(var(--js-sticky-header-height, 3.5rem) * 2.15);\n}\n@media only screen and (min-width: 64rem) {\n  .UnitDetails :target {\n    scroll-margin-top: calc(var(--js-sticky-header-height, 3.5rem) * 1.25);\n  }\n}\n\n.UnitDetails :target:not(details, h2) {\n  background-color: var(--color-background-highlighted);\n  padding: 0.25rem;\n}\n.UnitDetails-meta {\n  order: -1;\n}\n@media only screen and (min-width: 64rem) {\n  .UnitDetails-meta {\n    display: block;\n    margin-top: 2rem;\n    order: initial;\n  }\n}\n.UnitDetails-contentEmpty {\n  align-items: center;\n  background-color: var(--color-background-accented);\n  color: var(--color-text-subtle);\n  display: flex;\n  flex-direction: column;\n  height: 15rem;\n  padding-top: 1rem;\n  text-align: center;\n}\n.UnitDetails-contentEmpty img {\n  height: 7.8125rem;\n  width: auto;\n}\n"],
+  "mappings": ";;;;;AAMA,qEAEE,+BACA,kBAEF,gCAXA,iBAcA,sCACE,iCACA,+BACA,mBACA,eAEF,sCACE,+BAEF,uBACE,aAEF,0CACE,uBACE,iBAIJ,wCACE,kBAEF,uFAEE,eACA,kBACA,QCjCF,iBACE,mBAEF,wEAEE,UAEF,6DAEE,UAEF,uBACE,4BACA,mBAnBF,iBAqBE,oBAEF,2BAvBA,wBA0BA,uBACE,yBACA,SACA,kBACA,WAEF,6BACE,iBAEF,6BACE,kDAEF,mCACE,kBAEF,oBACE,4BACA,gBACA,gBA5CF,oBA8CE,sBACA,sBAEF,oBAjDA,mBAmDE,gBAEF,2BACE,aAEF,mCACE,eAEF,yCACE,kDAEF,+CACE,YACA,kBAhEF,UAkEE,cAEF,6EAEE,mCACA,oBACA,kBAxEF,UA0EE,cAEF,8BACE,kBACA,aA9EF,oCAiFE,kBACA,mBAEF,2BACE,2BACA,eACA,qBACA,eAEF,sDACE,wBAEF,0BACE,uBACA,aACA,sBACA,oBACA,qBAEF,8BACE,kBAEF,8BACE,0BACA,aACA,sBACA,oBA3GF,mBA8GA,gCACE,aACA,oBACA,kBACA,oBAEF,0CACE,gCACE,gBAEF,oHAEE,cAGJ,8BACE,kBAEF,qCACE,6BACA,YACA,YACA,iCACA,eACA,aACA,kBACA,kBACA,QACA,qBAEF,uBACE,+CA7IF,sBA+IE,mBACA,gBACA,iBACA,kBACA,mBAnJF,iBAqJE,kBC9IF,SACE,mBACA,sBAEF,gDAEE,UAEF,6CAEE,UAEF,eACE,4BACA,oBAEF,mBAvBA,wBA0BA,sBACE,kDACA,oBACA,gBACA,kBACA,kBAEF,0BACE,iBACA,WAEF,wBArCA,iBAwCA,2BACE,kBAEF,eACE,cAEF,iBA9CA,cAiDA,oCAEE,kBAEF,iBACE,qBAEF,uBACE,0BAEF,0GAIE,UAEF,uBACE,UAEF,yCACE,UAEF,4IAKE,UAEF,kBACE,mBACA,gBACA,eAEF,qBACE,iBAGF,uBACE,mBAGF,kDA3FA,4BA6FE,yBACA,aAEF,4BACE,gCAGF,wFAIE,iBAEF,qBACE,+BACA,kBAEF,0CACE,mBACE,iBACA,mBAEF,2BACE,WAGJ,yBACE,aAEF,uBACE,gBACA,uBAGF,wMAME,aAGF,sSAUE,oBAGF,0GAIE,qBACA,aACA,8BAEF,4BACE,+BACA,mBACA,gBAGF,kFAEE,aAGF,qBACE,+BACA,mBACA,iBAEF,+BACE,0EAEF,0CACE,+BACE,0EAGJ,sDACE,mBAEF,+BACE,kDACA,qBACA,mBA3LF,4BA6LE,cACA,iBACA,kBA/LF,gBAiME,iBAEF,uCACE,mBACA,aACA,yBACA,iBAEF,iCACE,8BACA,oCACA,sBACA,eACA,cACA,cACA,eAEF,qGAGE,uCArNF,qBAuNE,eACA,YACA,kBAzNF,eA4NA,gCACE,kCACA,mBAEF,qEAEE,8BACA,uBAEF,8BACE,gBAEF,sCAxOA,8BA0OE,mBACA,mBAEF,2CACE,YACA,aACA,gBACA,YACA,gBACA,WAQF,6DACE,4BACA,6BA7PF,SAgQA,+DACE,yBACA,0BAlQF,iBAqQA,oCACE,iCACA,eACA,mBACA,aACA,qBAEF,kCACE,+BAEF,4BACE,kBACA,mBACA,oBAIF,sFAGE,qBACA,qBACA,qBAGF,+BACE,kBAEF,8BACE,+BACA,iBACA,gBACA,mBACA,mBAEF,6BACE,qCAzSF,sBA2SE,iCACA,iBACA,mBACA,kBA9SF,uBAgTE,yBACA,sBAEF,+BACE,mBACA,aACA,UAEF,iCACE,+BAEF,mCACE,+BAEF,uCACE,wBAEF,yCACE,iCAEF,qEACE,iCACA,eAEF,2EACE,iCACA,eAEF,yCACE,gBACA,UAEF,uDACE,UAEF,kCAnVA,wBAsVA,iCACE,mBACA,aACA,UACA,mBCpVF,WACE,mBAEF,qBACE,kBAEF,uBACE,YACA,kBACA,kBACA,QAEF,6BACE,kEACA,4BACA,gCACA,WACA,qBACA,YACA,cACA,kBACA,YACA,WAEF,sDAEE,UAEF,iDAEE,UAEF,iBACE,4BACA,mBAxCF,iBA0CE,oBAEF,qBA5CA,wBA+CA,oBACE,eACA,qBACA,mBACA,gBACA,gBACA,eACA,qBChDF,UACE,aACA,cACA,uCACA,mBAEF,kCAEE,aACA,eACA,mBACA,cAEF,eACE,mBACA,aAEF,iBACE,gBACA,uBAEF,0BACE,UACE,uCAEF,kCAEE,oBAGJ,2BACE,wCACE,2BAEF,8FAEE,sBACA,oBAGJ,uBACE,WAEF,0BACE,uBACE,eC7CJ,oBACE,aACA,mBAEF,2BACE,yCACA,qBAZF,qBAcE,+BACA,eACA,YACA,kBACA,gBACA,WAEF,iDACE,iCAEF,kCACE,+BCZF,gCACE,cAEF,gCACE,kBAEF,0BACE,yBAEF,iEAEE,gBAEF,+BACE,oBACA,mBAEF,2BACE,cA/BF,eAkCA,4BACE,kBAEF,qFAGE,gCACA,cAEF,2BACE,mBACA,SACA,iBAEF,8BACE,aAjDF,SAoDA,8BACE,iBAEF,wCACE,sBAxDF,UA2DA,0BACE,sBAEF,8BACE,oBACA,kBACA,oBAEF,0BACE,iCACA,qBAEF,gCACE,0BAEF,+BACE,gBAEF,2BACE,SA9EF,kBAgFE,gBACA,uBACA,SACA,4BAEF,mEAEE,cACA,WAEF,iCACE,WAEF,8BACE,iBACA,yBAEF,sDAjGA,UAqGA,wCACE,eAEF,4BACE,qBAzGF,0BA2GE,sEACA,oBACA,cACA,sBACA,kDACA,qBAhHF,uBAkHE,6CAEF,oMAME,aACA,gBAEF,2BACE,eAEF,sDAEE,gBAEF,2BACE,iBAEF,2BACE,kBAEF,sDAEE,gBAEF,2BACE,eAEF,4CACE,kBAEF,wFAEE,gBAEF,4CACE,iBAEF,0BACE,aACA,sBAEF,mCA/JA,SAkKA,sDAEE,eACA,aACA,gBAEF,4DAEE,4BAEF,oIAIE,4BAEF,2BACE,cAEF,yDAEE,oEACA,iBAEF,4BACE,aACA,gBAEF,kHA9LA,SAiME,wBACA,gBAEF,8CACE,kBACA,UACA,wCAEF,2BACE,wCAEF,4BACE,qBA7MF,0BA+ME,sEACA,oBACA,cACA,sBACA,kDACA,qBApNF,uBAsNE,mDAEF,sCACE,cACA,qBAEF,wOAQE,aACA,mBAEF,2BACE,aAxOF,0BA2OE,qCACA,SAEF,mCA9OA,cAgPE,+BACA,4CAEF,gDACE,aAEF,+CACE,gBAEF,oMAME,kBACA,mBACA,gBACA,iBAEF,2BACE,cAEF,sDAEE,oBACA,4BAEF,2BACE,gBAEF,2BACE,iBAEF,2BACE,cAEF,4CACE,iBAEF,4CACE,gBACA,+BAEF,sDAEE,iBAEF,wHAIE,aACA,gBAEF,2BACE,oBAEF,6BACE,gBAEF,8BACE,iBAEF,2BAhTA,UAmTA,8BAnTA,UAqTE,gBACA,cACA,kBACA,gBAEF,8BA1TA,eA4TE,mBAEF,8BACE,cACA,WACA,cAEF,iCACE,gBAEF,kEAtUA,yBAyUE,qBAEF,iCACE,yCACA,yBAEF,+CACE,kDAEF,4BACE,eACA,mBACA,yCAEF,yCACE,qBAEF,wCACE,sBAEF,6BA7VA,2BAgWE,cACA,kDAjWF,uBAoWA,4BACE,iBAEF,iCAvWA,mBA0WE,eACA,kBACA,gBACA,uBACA,SAEF,4BAhXA,aAkXE,cACA,cACA,iBACA,kDArXF,uBAwXA,iCACE,eACA,eA1XF,mBA6XE,iBACA,oBACA,iBACA,yBACA,SC3XF,YACE,mBAEF,8BAEE,kBAEF,yDAEE,UAEF,mDAEE,UAEF,kBACE,4BACA,mBACA,oBAEF,sBA1BA,wBA6BA,oBACE,yEACA,iEACA,iBACA,gBACA,kBAEF,uBACE,mBAEF,uBACE,gBACA,YACA,iCACA,eA3CF,UA8CA,yBACE,gBACA,YACA,iCACA,eACA,aAnDF,UAsDA,0CACE,wBACA,gBACA,mBACA,iBAEF,6CACE,aAEF,+CACE,cAGF,wBACE,yBCrDF,aACE,gBACA,aACA,qCAlBF,YAoBE,iBAEF,0CACE,aACE,+EAGJ,0CACE,aACE,8DACA,wBAGJ,qBACE,sEAEF,0CACE,qBACE,uEAIJ,qCACE,qDA3CF,eA8CA,kBACE,SAEF,0CACE,kBACE,cACA,gBACA,eAGJ,0BACE,mBACA,kDACA,+BACA,aACA,sBACA,aACA,iBACA,kBAEF,8BACE,iBACA",
   "names": []
 }
diff --git a/static/frontend/unit/main/main.tmpl b/static/frontend/unit/main/main.tmpl
index c0258f3..c8aa950 100644
--- a/static/frontend/unit/main/main.tmpl
+++ b/static/frontend/unit/main/main.tmpl
@@ -70,7 +70,6 @@
       {{end}}
     </div>
   </div>
-  {{template "unit-modals" .}}
 {{end}}
 
 {{define "main-scripts"}}
diff --git a/static/frontend/unit/main/main.ts b/static/frontend/unit/main/main.ts
index e26a352..d23dfb3 100644
--- a/static/frontend/unit/main/main.ts
+++ b/static/frontend/unit/main/main.ts
@@ -1,10 +1,8 @@
 import { initPlaygrounds } from 'static/shared/playground/playground';
-import { initModals } from 'static/shared/jump/jump';
 import { SelectNavController, makeSelectNav } from 'static/shared/outline/select';
 import { TreeNavController } from 'static/shared/outline/tree';
 import { ExpandableRowsTableController } from 'static/shared/table/table';
 
-initModals();
 initPlaygrounds();
 
 const directories = document.querySelector<HTMLTableElement>('.js-expandableTable');
diff --git a/tests/e2e/__snapshots__/ci/basic.desktop.test.ts.snap b/tests/e2e/__snapshots__/ci/basic.desktop.test.ts.snap
index c4f178d..37ffae3 100644
--- a/tests/e2e/__snapshots__/ci/basic.desktop.test.ts.snap
+++ b/tests/e2e/__snapshots__/ci/basic.desktop.test.ts.snap
@@ -200,6 +200,10 @@
       "name": "Google logo",
       "role": "link",
     },
+    Object {
+      "name": "Jump to Identifier",
+      "role": "form",
+    },
   ],
   "name": "github.com/package/does/not/exist - pkg.go.dev",
   "role": "RootWebArea",
@@ -418,6 +422,10 @@
       "name": "Google logo",
       "role": "link",
     },
+    Object {
+      "name": "Jump to Identifier",
+      "role": "form",
+    },
   ],
   "name": "Badge - pkg.go.dev",
   "role": "RootWebArea",
@@ -620,6 +628,10 @@
       "name": "Google logo",
       "role": "link",
     },
+    Object {
+      "name": "Jump to Identifier",
+      "role": "form",
+    },
   ],
   "name": "400 Bad Request - pkg.go.dev",
   "role": "RootWebArea",
@@ -839,6 +851,10 @@
       "name": "Google logo",
       "role": "link",
     },
+    Object {
+      "name": "Jump to Identifier",
+      "role": "form",
+    },
   ],
   "name": "pkg.go.dev",
   "role": "RootWebArea",
@@ -1493,6 +1509,10 @@
       "name": "Google logo",
       "role": "link",
     },
+    Object {
+      "name": "Jump to Identifier",
+      "role": "form",
+    },
   ],
   "name": "License Policy - pkg.go.dev",
   "role": "RootWebArea",
@@ -1746,6 +1766,10 @@
       "name": "Google logo",
       "role": "link",
     },
+    Object {
+      "name": "Jump to Identifier",
+      "role": "form",
+    },
   ],
   "name": "Search Help - pkg.go.dev",
   "role": "RootWebArea",
@@ -2104,6 +2128,10 @@
       "name": "Google logo",
       "role": "link",
     },
+    Object {
+      "name": "Jump to Identifier",
+      "role": "form",
+    },
   ],
   "name": "Sub-repositories - pkg.go.dev",
   "role": "RootWebArea",
diff --git a/tests/e2e/__snapshots__/ci/basic.mobile.test.ts.snap b/tests/e2e/__snapshots__/ci/basic.mobile.test.ts.snap
index c15c9ac..4a5cb38 100644
--- a/tests/e2e/__snapshots__/ci/basic.mobile.test.ts.snap
+++ b/tests/e2e/__snapshots__/ci/basic.mobile.test.ts.snap
@@ -184,6 +184,10 @@
       "name": "Google logo",
       "role": "link",
     },
+    Object {
+      "name": "Jump to Identifier",
+      "role": "form",
+    },
   ],
   "name": "github.com/package/does/not/exist - pkg.go.dev",
   "role": "RootWebArea",
@@ -386,6 +390,10 @@
       "name": "Google logo",
       "role": "link",
     },
+    Object {
+      "name": "Jump to Identifier",
+      "role": "form",
+    },
   ],
   "name": "Badge - pkg.go.dev",
   "role": "RootWebArea",
@@ -572,6 +580,10 @@
       "name": "Google logo",
       "role": "link",
     },
+    Object {
+      "name": "Jump to Identifier",
+      "role": "form",
+    },
   ],
   "name": "400 Bad Request - pkg.go.dev",
   "role": "RootWebArea",
@@ -783,6 +795,10 @@
       "name": "Google logo",
       "role": "link",
     },
+    Object {
+      "name": "Jump to Identifier",
+      "role": "form",
+    },
   ],
   "name": "pkg.go.dev",
   "role": "RootWebArea",
@@ -1421,6 +1437,10 @@
       "name": "Google logo",
       "role": "link",
     },
+    Object {
+      "name": "Jump to Identifier",
+      "role": "form",
+    },
   ],
   "name": "License Policy - pkg.go.dev",
   "role": "RootWebArea",
@@ -1658,6 +1678,10 @@
       "name": "Google logo",
       "role": "link",
     },
+    Object {
+      "name": "Jump to Identifier",
+      "role": "form",
+    },
   ],
   "name": "Search Help - pkg.go.dev",
   "role": "RootWebArea",
@@ -2000,6 +2024,10 @@
       "name": "Google logo",
       "role": "link",
     },
+    Object {
+      "name": "Jump to Identifier",
+      "role": "form",
+    },
   ],
   "name": "Sub-repositories - pkg.go.dev",
   "role": "RootWebArea",
diff --git a/tests/e2e/__snapshots__/ci/search.desktop.test.ts.snap b/tests/e2e/__snapshots__/ci/search.desktop.test.ts.snap
index a0b3004..a8ebd57 100644
--- a/tests/e2e/__snapshots__/ci/search.desktop.test.ts.snap
+++ b/tests/e2e/__snapshots__/ci/search.desktop.test.ts.snap
@@ -1545,6 +1545,10 @@
       "name": "Google logo",
       "role": "link",
     },
+    Object {
+      "name": "Jump to Identifier",
+      "role": "form",
+    },
   ],
   "name": "http - Search Results - pkg.go.dev",
   "role": "RootWebArea",
diff --git a/tests/e2e/__snapshots__/ci/search.mobile.test.ts.snap b/tests/e2e/__snapshots__/ci/search.mobile.test.ts.snap
index 1cfd7ba..9d6491e 100644
--- a/tests/e2e/__snapshots__/ci/search.mobile.test.ts.snap
+++ b/tests/e2e/__snapshots__/ci/search.mobile.test.ts.snap
@@ -1528,6 +1528,10 @@
       "name": "Google logo",
       "role": "link",
     },
+    Object {
+      "name": "Jump to Identifier",
+      "role": "form",
+    },
   ],
   "name": "http - Search Results - pkg.go.dev",
   "role": "RootWebArea",