diff --git a/static/frontend/frontend.js b/static/frontend/frontend.js
index 1dfc36a..b9f0c8a 100644
--- a/static/frontend/frontend.js
+++ b/static/frontend/frontend.js
@@ -1,4 +1,4 @@
-function q(){let t=document.querySelector(".js-header");document.querySelectorAll(".js-desktop-menu-hover").forEach(l=>{l.addEventListener("mouseenter",c=>{let m=c.target,s=document.querySelector(".forced-open");s&&s!==l&&(s.blur(),s.classList.remove("forced-open")),m.focus(),m.blur()});let r=c=>{var u,h;let m=c.target,s=m==null?void 0:m.classList.contains("forced-open"),o=c.currentTarget;s?(o.removeEventListener("blur",()=>o.classList.remove("forced-open")),o.classList.remove("forced-open"),o.classList.add("forced-closed"),o.blur(),(u=o==null?void 0:o.parentNode)==null||u.addEventListener("mouseout",()=>{o.classList.remove("forced-closed")})):(o.classList.remove("forced-closed"),o.classList.add("forced-open"),o.focus(),o.addEventListener("blur",()=>o.classList.remove("forced-open")),(h=o==null?void 0:o.parentNode)==null||h.removeEventListener("mouseout",()=>{o.classList.remove("forced-closed")}))};l.addEventListener("click",r)}),document.querySelectorAll(".Header-menuItem").forEach(l=>{l.addEventListener("keyup",r=>{var m;let c=r;c.key==="Escape"&&((m=c.target)==null||m.blur())})});let i=document.querySelectorAll(".js-headerMenuButton");i.forEach(l=>{l.addEventListener("click",r=>{r.preventDefault();let c=t==null?void 0:t.classList.contains("is-active");c?v(t):T(t),l.setAttribute("aria-expanded",c?"true":"false")})});let a=document.querySelector(".js-scrim");a==null||a.addEventListener("click",l=>{l.preventDefault(),document.querySelectorAll(".go-NavigationDrawer-submenuItem.is-active").forEach(c=>v(c)),v(t),i.forEach(c=>{c.setAttribute("aria-expanded",(t==null?void 0:t.classList.contains("is-active"))?"true":"false")})});let d=l=>{if(!l)return[];let r=Array.from(l.querySelectorAll(":scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > a, :scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > .go-Header-socialIcons > a")||[]);console.log(r);let c=l.querySelector(".go-NavigationDrawer-header > a");return c&&r.unshift(c),r},g=l=>{if(!!l)return l.classList.contains("go-NavigationDrawer-submenuItem")},v=l=>{var m,s;if(!l)return;let r=d(l);l.classList.remove("is-active");let c=(m=l.closest(".go-NavigationDrawer-listItem"))==null?void 0:m.querySelector(":scope > a");c==null||c.focus(),r==null||r.forEach(o=>o==null?void 0:o.setAttribute("tabindex","-1")),r&&r[0]&&(r[0].removeEventListener("keydown",p(l)),r[r.length-1].removeEventListener("keydown",L(l))),l===t&&i&&((s=i[0])==null||s.focus())},T=l=>{let r=d(l);l.classList.add("is-active"),r.forEach(c=>c.setAttribute("tabindex","0")),r[0].focus(),r[0].addEventListener("keydown",p(l)),r[r.length-1].addEventListener("keydown",L(l))},p=l=>r=>{r.key==="Tab"&&r.shiftKey&&(r.preventDefault(),v(l))},L=l=>r=>{r.key==="Tab"&&!r.shiftKey&&(r.preventDefault(),v(l))},y=l=>{var m;let r=g(l),c=d(l);l.addEventListener("keyup",s=>{s.key==="Escape"&&v(l)}),c.forEach(s=>{let o=s.closest("li");if(o&&o.classList.contains("js-mobile-subnav-trigger")){let u=o.querySelector(".go-NavigationDrawer-submenuItem");s.addEventListener("click",()=>{T(u)})}}),r&&(v(l),(m=l==null?void 0:l.querySelector(".go-NavigationDrawer-header"))==null||m.addEventListener("click",s=>{s.preventDefault(),v(l)}))};document.querySelectorAll(".go-NavigationDrawer").forEach(l=>y(l)),v(t)}function N(){let t=document.querySelector(".js-searchForm"),e=document.querySelector(".js-expandSearch"),n=t==null?void 0:t.querySelector("input"),i=document.querySelector(".js-headerLogo"),a=document.querySelector(".js-headerMenuButton");e==null||e.addEventListener("click",()=>{t==null||t.classList.add("go-SearchForm--expanded"),i==null||i.classList.add("go-Header-logo--hidden"),a==null||a.classList.add("go-Header-navOpen--hidden"),n==null||n.focus()}),document==null||document.addEventListener("click",d=>{(t==null?void 0:t.contains(d.target))||(t==null||t.classList.remove("go-SearchForm--expanded"),i==null||i.classList.remove("go-Header-logo--hidden"),a==null||a.classList.remove("go-Header-navOpen--hidden"))})}var k=class{constructor(e){this.el=e;this.setActive=e=>{this.activeIndex=(e+this.slides.length)%this.slides.length,this.el.setAttribute("data-slide-index",String(this.activeIndex));for(let n of this.dots)n.classList.remove("go-Carousel-dot--active");this.dots[this.activeIndex].classList.add("go-Carousel-dot--active");for(let n of this.slides)n.setAttribute("aria-hidden","true");this.slides[this.activeIndex].removeAttribute("aria-hidden"),this.liveRegion.textContent="Slide "+(this.activeIndex+1)+" of "+this.slides.length};var n;this.slides=Array.from(e.querySelectorAll(".go-Carousel-slide")),this.dots=[],this.liveRegion=document.createElement("div"),this.activeIndex=Number((n=e.getAttribute("data-slide-index"))!=null?n:0),this.initSlides(),this.initArrows(),this.initDots(),this.initLiveRegion()}initSlides(){for(let[e,n]of this.slides.entries())e!==this.activeIndex&&n.setAttribute("aria-hidden","true")}initArrows(){var n,i;let e=document.createElement("ul");e.classList.add("go-Carousel-arrows"),e.innerHTML=`
+function q(){let t=document.querySelector(".js-header");document.querySelectorAll(".js-desktop-menu-hover").forEach(l=>{l.addEventListener("mouseenter",c=>{let m=c.target,s=document.querySelector(".forced-open");s&&s!==l&&(s.blur(),s.classList.remove("forced-open")),m.focus(),m.blur()});let r=c=>{var u,h;let m=c.target,s=m==null?void 0:m.classList.contains("forced-open"),o=c.currentTarget;s?(o.removeEventListener("blur",()=>o.classList.remove("forced-open")),o.classList.remove("forced-open"),o.classList.add("forced-closed"),o.blur(),(u=o==null?void 0:o.parentNode)==null||u.addEventListener("mouseout",()=>{o.classList.remove("forced-closed")})):(o.classList.remove("forced-closed"),o.classList.add("forced-open"),o.focus(),o.addEventListener("blur",()=>o.classList.remove("forced-open")),(h=o==null?void 0:o.parentNode)==null||h.removeEventListener("mouseout",()=>{o.classList.remove("forced-closed")}))};l.addEventListener("click",r)}),document.querySelectorAll(".Header-menuItem").forEach(l=>{l.addEventListener("keyup",r=>{var m;let c=r;c.key==="Escape"&&((m=c.target)==null||m.blur())})});let i=document.querySelectorAll(".js-headerMenuButton");i.forEach(l=>{l.addEventListener("click",r=>{r.preventDefault();let c=t==null?void 0:t.classList.contains("is-active");c?v(t):T(t),l.setAttribute("aria-expanded",c?"true":"false")})});let a=document.querySelector(".js-scrim");a==null||a.addEventListener("click",l=>{l.preventDefault(),document.querySelectorAll(".go-NavigationDrawer-submenuItem.is-active").forEach(c=>v(c)),v(t),i.forEach(c=>{c.setAttribute("aria-expanded",(t==null?void 0:t.classList.contains("is-active"))?"true":"false")})});let d=l=>{if(!l)return[];let r=Array.from(l.querySelectorAll(":scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > a, :scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > .go-Header-socialIcons > a")||[]),c=l.querySelector(".go-NavigationDrawer-header > a");return c&&r.unshift(c),r},g=l=>{if(!!l)return l.classList.contains("go-NavigationDrawer-submenuItem")},v=l=>{var m,s;if(!l)return;let r=d(l);l.classList.remove("is-active");let c=(m=l.closest(".go-NavigationDrawer-listItem"))==null?void 0:m.querySelector(":scope > a");c==null||c.focus(),r==null||r.forEach(o=>o==null?void 0:o.setAttribute("tabindex","-1")),r&&r[0]&&(r[0].removeEventListener("keydown",p(l)),r[r.length-1].removeEventListener("keydown",L(l))),l===t&&i&&((s=i[0])==null||s.focus())},T=l=>{let r=d(l);l.classList.add("is-active"),r.forEach(c=>c.setAttribute("tabindex","0")),r[0].focus(),r[0].addEventListener("keydown",p(l)),r[r.length-1].addEventListener("keydown",L(l))},p=l=>r=>{r.key==="Tab"&&r.shiftKey&&(r.preventDefault(),v(l))},L=l=>r=>{r.key==="Tab"&&!r.shiftKey&&(r.preventDefault(),v(l))},y=l=>{var m;let r=g(l),c=d(l);l.addEventListener("keyup",s=>{s.key==="Escape"&&v(l)}),c.forEach(s=>{let o=s.closest("li");if(o&&o.classList.contains("js-mobile-subnav-trigger")){let u=o.querySelector(".go-NavigationDrawer-submenuItem");s.addEventListener("click",()=>{T(u)})}}),r&&(v(l),(m=l==null?void 0:l.querySelector(".go-NavigationDrawer-header"))==null||m.addEventListener("click",s=>{s.preventDefault(),v(l)}))};document.querySelectorAll(".go-NavigationDrawer").forEach(l=>y(l)),v(t)}function N(){let t=document.querySelector(".js-searchForm"),e=document.querySelector(".js-expandSearch"),n=t==null?void 0:t.querySelector("input"),i=document.querySelector(".js-headerLogo"),a=document.querySelector(".js-headerMenuButton");e==null||e.addEventListener("click",()=>{t==null||t.classList.add("go-SearchForm--expanded"),i==null||i.classList.add("go-Header-logo--hidden"),a==null||a.classList.add("go-Header-navOpen--hidden"),n==null||n.focus()}),document==null||document.addEventListener("click",d=>{(t==null?void 0:t.contains(d.target))||(t==null||t.classList.remove("go-SearchForm--expanded"),i==null||i.classList.remove("go-Header-logo--hidden"),a==null||a.classList.remove("go-Header-navOpen--hidden"))})}var k=class{constructor(e){this.el=e;this.setActive=e=>{this.activeIndex=(e+this.slides.length)%this.slides.length,this.el.setAttribute("data-slide-index",String(this.activeIndex));for(let n of this.dots)n.classList.remove("go-Carousel-dot--active");this.dots[this.activeIndex].classList.add("go-Carousel-dot--active");for(let n of this.slides)n.setAttribute("aria-hidden","true");this.slides[this.activeIndex].removeAttribute("aria-hidden"),this.liveRegion.textContent="Slide "+(this.activeIndex+1)+" of "+this.slides.length};var n;this.slides=Array.from(e.querySelectorAll(".go-Carousel-slide")),this.dots=[],this.liveRegion=document.createElement("div"),this.activeIndex=Number((n=e.getAttribute("data-slide-index"))!=null?n:0),this.initSlides(),this.initArrows(),this.initDots(),this.initLiveRegion()}initSlides(){for(let[e,n]of this.slides.entries())e!==this.activeIndex&&n.setAttribute("aria-hidden","true")}initArrows(){var n,i;let e=document.createElement("ul");e.classList.add("go-Carousel-arrows"),e.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="">
diff --git a/static/frontend/frontend.js.map b/static/frontend/frontend.js.map
index 886199e..960f501 100644
--- a/static/frontend/frontend.js.map
+++ b/static/frontend/frontend.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["../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": ["/**\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') as HTMLElement;\n\n  // Desktop menu hover state\n  const menuItemHovers = document.querySelectorAll('.js-desktop-menu-hover');\n  menuItemHovers.forEach(menuItemHover => {\n    // when user clicks on the dropdown menu item on desktop or mobile,\n    // force the menu to stay open until the user clicks off of it.\n    menuItemHover.addEventListener('mouseenter', e => {\n      const target = e.target as HTMLElement;\n      const forced = document.querySelector('.forced-open') as HTMLElement;\n      if (forced && forced !== menuItemHover) {\n        forced.blur();\n        forced.classList.remove('forced-open');\n      }\n      // prevents menus that have been tabbed into from staying open\n      // when you hover over another menu\n      target.focus();\n      target.blur();\n    });\n\n    const toggleForcedOpen = (e: Event) => {\n      const target = e.target as HTMLElement;\n      const isForced = target?.classList.contains('forced-open');\n      const currentTarget = e.currentTarget as HTMLElement;\n      if (isForced) {\n        currentTarget.removeEventListener('blur', () =>\n          currentTarget.classList.remove('forced-open')\n        );\n        currentTarget.classList.remove('forced-open');\n        currentTarget.classList.add('forced-closed');\n        currentTarget.blur();\n        currentTarget?.parentNode?.addEventListener('mouseout', () => {\n          currentTarget.classList.remove('forced-closed');\n        });\n      } else {\n        currentTarget.classList.remove('forced-closed');\n        currentTarget.classList.add('forced-open');\n        currentTarget.focus();\n        currentTarget.addEventListener('blur', () => currentTarget.classList.remove('forced-open'));\n        currentTarget?.parentNode?.removeEventListener('mouseout', () => {\n          currentTarget.classList.remove('forced-closed');\n        });\n      }\n    };\n    menuItemHover.addEventListener('click', toggleForcedOpen);\n  });\n\n  // ensure desktop submenus are closed when esc is pressed\n  const headerItems = document.querySelectorAll('.Header-menuItem');\n  headerItems.forEach(header => {\n    header.addEventListener('keyup', e => {\n      const event = e as KeyboardEvent;\n      if (event.key === 'Escape') {\n        (event.target as HTMLElement)?.blur();\n      }\n    });\n  });\n\n  // Mobile menu subnav menus\n  const headerbuttons = document.querySelectorAll('.js-headerMenuButton');\n  headerbuttons.forEach(button => {\n    button.addEventListener('click', e => {\n      e.preventDefault();\n      const isActive = header?.classList.contains('is-active');\n      if (isActive) {\n        handleNavigationDrawerInactive(header);\n      } else {\n        handleNavigationDrawerActive(header);\n      }\n      button.setAttribute('aria-expanded', isActive ? 'true' : 'false');\n    });\n  });\n\n  const scrim = document.querySelector('.js-scrim');\n  scrim?.addEventListener('click', e => {\n    e.preventDefault();\n\n    // find any active submenus and close them\n    const activeSubnavs = document.querySelectorAll('.go-NavigationDrawer-submenuItem.is-active');\n    activeSubnavs.forEach(subnav => handleNavigationDrawerInactive(subnav as HTMLElement));\n\n    handleNavigationDrawerInactive(header);\n\n    headerbuttons.forEach(button => {\n      button.setAttribute(\n        'aria-expanded',\n        header?.classList.contains('is-active') ? 'true' : 'false'\n      );\n    });\n  });\n\n  const getNavigationDrawerMenuItems = (navigationDrawer: HTMLElement): HTMLElement[] => {\n    if (!navigationDrawer) {\n      return [];\n    }\n\n    const menuItems = Array.from(\n      navigationDrawer.querySelectorAll(\n        ':scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > a, :scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > .go-Header-socialIcons > a'\n      ) || []\n    );\n    console.log(menuItems);\n\n    const anchorEl = navigationDrawer.querySelector('.go-NavigationDrawer-header > a');\n    if (anchorEl) {\n      menuItems.unshift(anchorEl);\n    }\n    return menuItems as HTMLElement[];\n  };\n\n  const getNavigationDrawerIsSubnav = (navigationDrawer: HTMLElement) => {\n    if (!navigationDrawer) {\n      return;\n    }\n    return navigationDrawer.classList.contains('go-NavigationDrawer-submenuItem');\n  };\n\n  const handleNavigationDrawerInactive = (navigationDrawer: HTMLElement) => {\n    if (!navigationDrawer) {\n      return;\n    }\n    const menuItems = getNavigationDrawerMenuItems(navigationDrawer);\n    navigationDrawer.classList.remove('is-active');\n    const parentMenuItem = navigationDrawer\n      .closest('.go-NavigationDrawer-listItem')\n      ?.querySelector(':scope > a') as HTMLElement;\n    parentMenuItem?.focus();\n    menuItems?.forEach(item => item?.setAttribute('tabindex', '-1'));\n    if (menuItems && menuItems[0]) {\n      menuItems[0].removeEventListener('keydown', handleMenuItemTabLeftFactory(navigationDrawer));\n      menuItems[menuItems.length - 1].removeEventListener(\n        'keydown',\n        handleMenuItemTabRightFactory(navigationDrawer)\n      );\n    }\n\n    if (navigationDrawer === header) {\n      headerbuttons && (headerbuttons[0] as HTMLElement)?.focus();\n    }\n  };\n\n  const handleNavigationDrawerActive = (navigationDrawer: HTMLElement) => {\n    const menuItems = getNavigationDrawerMenuItems(navigationDrawer);\n\n    navigationDrawer.classList.add('is-active');\n    menuItems.forEach(item => item.setAttribute('tabindex', '0'));\n    menuItems[0].focus();\n\n    menuItems[0].addEventListener('keydown', handleMenuItemTabLeftFactory(navigationDrawer));\n    menuItems[menuItems.length - 1].addEventListener(\n      'keydown',\n      handleMenuItemTabRightFactory(navigationDrawer)\n    );\n  };\n\n  const handleMenuItemTabLeftFactory = (navigationDrawer: HTMLElement) => {\n    return (e: KeyboardEvent) => {\n      if (e.key === 'Tab' && e.shiftKey) {\n        e.preventDefault();\n        handleNavigationDrawerInactive(navigationDrawer);\n      }\n    };\n  };\n\n  const handleMenuItemTabRightFactory = (navigationDrawer: HTMLElement) => {\n    return (e: KeyboardEvent) => {\n      if (e.key === 'Tab' && !e.shiftKey) {\n        e.preventDefault();\n        handleNavigationDrawerInactive(navigationDrawer);\n      }\n    };\n  };\n\n  const prepMobileNavigationDrawer = (navigationDrawer: HTMLElement) => {\n    const isSubnav = getNavigationDrawerIsSubnav(navigationDrawer);\n    const menuItems = getNavigationDrawerMenuItems(navigationDrawer);\n    navigationDrawer.addEventListener('keyup', e => {\n      if (e.key === 'Escape') {\n        handleNavigationDrawerInactive(navigationDrawer);\n      }\n    });\n\n    menuItems.forEach(item => {\n      const parentLi = item.closest('li');\n      if (parentLi && parentLi.classList.contains('js-mobile-subnav-trigger')) {\n        const submenu = parentLi.querySelector('.go-NavigationDrawer-submenuItem') as HTMLElement;\n        item.addEventListener('click', () => {\n          handleNavigationDrawerActive(submenu);\n        });\n      }\n    });\n    if (isSubnav) {\n      handleNavigationDrawerInactive(navigationDrawer);\n      navigationDrawer\n        ?.querySelector('.go-NavigationDrawer-header')\n        ?.addEventListener('click', e => {\n          e.preventDefault();\n          handleNavigationDrawerInactive(navigationDrawer);\n        });\n    }\n  };\n\n  document\n    .querySelectorAll('.go-NavigationDrawer')\n    .forEach(drawer => prepMobileNavigationDrawer(drawer as HTMLElement));\n\n  handleNavigationDrawerInactive(header);\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, accessibility 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$=\"${hash}\"]`)?.value;\n    if (value) {\n      select.value = value;\n    }\n  }, 50);\n  return label;\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\ninterface Window {\n  dialogPolyfill?: {\n    registerDialog: (el: HTMLDialogElement) => void;\n  };\n}\n\ndeclare const window: Window;\n\n/**\n * ModalController registers a dialog element with the polyfill if\n * necessary for the current browser, add adds event listeners to\n * close and open modals.\n */\nexport class ModalController {\n  constructor(private el: HTMLDialogElement) {\n    if (window.dialogPolyfill) {\n      window.dialogPolyfill.registerDialog(el);\n    }\n    this.init();\n  }\n\n  init() {\n    const button = document.querySelector<HTMLButtonElement>(`[aria-controls=\"${this.el.id}\"]`);\n    if (button) {\n      button.addEventListener('click', () => {\n        if (this.el.showModal) {\n          this.el.showModal();\n        } else {\n          this.el.setAttribute('opened', 'true');\n        }\n        this.el.querySelector('input')?.focus();\n      });\n    }\n    for (const btn of this.el.querySelectorAll<HTMLButtonElement>('[data-modal-close]')) {\n      btn.addEventListener('click', () => {\n        if (this.el.close) {\n          this.el.close();\n        } else {\n          this.el.removeAttribute('opened');\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\nexport function initModals(): void {\n  const jumpDialog = document.querySelector<HTMLDialogElement>('.JumpDialog');\n  const jumpBody = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-body');\n  const jumpList = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-list');\n  const jumpFilter = jumpDialog?.querySelector<HTMLInputElement>('.JumpDialog-input');\n  const doc = document.querySelector<HTMLDivElement>('.js-documentation');\n\n  interface JumpListItem {\n    link: HTMLAnchorElement;\n    name: string;\n    kind: string;\n    lower: string;\n  }\n\n  let 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.\n  function 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\n  function 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\n  let lastFilterValue: string; // The last contents of the filter text box.\n  let 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.\n  function 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.\n  function 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.\n  function 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\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      if (jumpDialog?.open || shortcutsDialog?.open) {\n        return;\n      }\n      jumpDialog?.showModal?.();\n      jumpFilter?.focus();\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\nwindow.addEventListener('load', () => {\n  for (const el of document.querySelectorAll<HTMLButtonElement>('.js-clipboard')) {\n    new ClipboardController(el);\n  }\n\n  for (const el of document.querySelectorAll<HTMLDialogElement>('.js-modal')) {\n    new ModalController(el);\n  }\n\n  for (const t of document.querySelectorAll<HTMLDetailsElement>('.js-tooltip')) {\n    new ToolTipController(t);\n  }\n\n  for (const el of document.querySelectorAll<HTMLSelectElement>('.js-selectNav')) {\n    new SelectNavController(el);\n  }\n\n  for (const el of document.querySelectorAll<HTMLSelectElement>('.js-carousel')) {\n    new CarouselController(el);\n  }\n\n  for (const el of document.querySelectorAll('.js-toggleTheme')) {\n    el.addEventListener('click', () => {\n      toggleTheme();\n    });\n  }\n\n  if (document.querySelector<HTMLElement>('.js-gtmID')?.dataset.gtmid && window.dataLayer) {\n    analytics.func(function () {\n      removeUTMSource();\n    });\n  } else {\n    removeUTMSource();\n  }\n\n  registerHeaderListeners();\n  registerSearchFormListeners();\n  initModals();\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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+  "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\nexport function registerHeaderListeners(): void {\n  const header = document.querySelector('.js-header') as HTMLElement;\n\n  // Desktop menu hover state\n  const menuItemHovers = document.querySelectorAll('.js-desktop-menu-hover');\n  menuItemHovers.forEach(menuItemHover => {\n    // when user clicks on the dropdown menu item on desktop or mobile,\n    // force the menu to stay open until the user clicks off of it.\n    menuItemHover.addEventListener('mouseenter', e => {\n      const target = e.target as HTMLElement;\n      const forced = document.querySelector('.forced-open') as HTMLElement;\n      if (forced && forced !== menuItemHover) {\n        forced.blur();\n        forced.classList.remove('forced-open');\n      }\n      // prevents menus that have been tabbed into from staying open\n      // when you hover over another menu\n      target.focus();\n      target.blur();\n    });\n\n    const toggleForcedOpen = (e: Event) => {\n      const target = e.target as HTMLElement;\n      const isForced = target?.classList.contains('forced-open');\n      const currentTarget = e.currentTarget as HTMLElement;\n      if (isForced) {\n        currentTarget.removeEventListener('blur', () =>\n          currentTarget.classList.remove('forced-open')\n        );\n        currentTarget.classList.remove('forced-open');\n        currentTarget.classList.add('forced-closed');\n        currentTarget.blur();\n        currentTarget?.parentNode?.addEventListener('mouseout', () => {\n          currentTarget.classList.remove('forced-closed');\n        });\n      } else {\n        currentTarget.classList.remove('forced-closed');\n        currentTarget.classList.add('forced-open');\n        currentTarget.focus();\n        currentTarget.addEventListener('blur', () => currentTarget.classList.remove('forced-open'));\n        currentTarget?.parentNode?.removeEventListener('mouseout', () => {\n          currentTarget.classList.remove('forced-closed');\n        });\n      }\n    };\n    menuItemHover.addEventListener('click', toggleForcedOpen);\n  });\n\n  // ensure desktop submenus are closed when esc is pressed\n  const headerItems = document.querySelectorAll('.Header-menuItem');\n  headerItems.forEach(header => {\n    header.addEventListener('keyup', e => {\n      const event = e as KeyboardEvent;\n      if (event.key === 'Escape') {\n        (event.target as HTMLElement)?.blur();\n      }\n    });\n  });\n\n  // Mobile menu subnav menus\n  const headerbuttons = document.querySelectorAll('.js-headerMenuButton');\n  headerbuttons.forEach(button => {\n    button.addEventListener('click', e => {\n      e.preventDefault();\n      const isActive = header?.classList.contains('is-active');\n      if (isActive) {\n        handleNavigationDrawerInactive(header);\n      } else {\n        handleNavigationDrawerActive(header);\n      }\n      button.setAttribute('aria-expanded', isActive ? 'true' : 'false');\n    });\n  });\n\n  const scrim = document.querySelector('.js-scrim');\n  scrim?.addEventListener('click', e => {\n    e.preventDefault();\n\n    // find any active submenus and close them\n    const activeSubnavs = document.querySelectorAll('.go-NavigationDrawer-submenuItem.is-active');\n    activeSubnavs.forEach(subnav => handleNavigationDrawerInactive(subnav as HTMLElement));\n\n    handleNavigationDrawerInactive(header);\n\n    headerbuttons.forEach(button => {\n      button.setAttribute(\n        'aria-expanded',\n        header?.classList.contains('is-active') ? 'true' : 'false'\n      );\n    });\n  });\n\n  const getNavigationDrawerMenuItems = (navigationDrawer: HTMLElement): HTMLElement[] => {\n    if (!navigationDrawer) {\n      return [];\n    }\n\n    const menuItems = Array.from(\n      navigationDrawer.querySelectorAll(\n        ':scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > a, :scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > .go-Header-socialIcons > a'\n      ) || []\n    );\n\n    const anchorEl = navigationDrawer.querySelector('.go-NavigationDrawer-header > a');\n    if (anchorEl) {\n      menuItems.unshift(anchorEl);\n    }\n    return menuItems as HTMLElement[];\n  };\n\n  const getNavigationDrawerIsSubnav = (navigationDrawer: HTMLElement) => {\n    if (!navigationDrawer) {\n      return;\n    }\n    return navigationDrawer.classList.contains('go-NavigationDrawer-submenuItem');\n  };\n\n  const handleNavigationDrawerInactive = (navigationDrawer: HTMLElement) => {\n    if (!navigationDrawer) {\n      return;\n    }\n    const menuItems = getNavigationDrawerMenuItems(navigationDrawer);\n    navigationDrawer.classList.remove('is-active');\n    const parentMenuItem = navigationDrawer\n      .closest('.go-NavigationDrawer-listItem')\n      ?.querySelector(':scope > a') as HTMLElement;\n    parentMenuItem?.focus();\n    menuItems?.forEach(item => item?.setAttribute('tabindex', '-1'));\n    if (menuItems && menuItems[0]) {\n      menuItems[0].removeEventListener('keydown', handleMenuItemTabLeftFactory(navigationDrawer));\n      menuItems[menuItems.length - 1].removeEventListener(\n        'keydown',\n        handleMenuItemTabRightFactory(navigationDrawer)\n      );\n    }\n\n    if (navigationDrawer === header) {\n      headerbuttons && (headerbuttons[0] as HTMLElement)?.focus();\n    }\n  };\n\n  const handleNavigationDrawerActive = (navigationDrawer: HTMLElement) => {\n    const menuItems = getNavigationDrawerMenuItems(navigationDrawer);\n\n    navigationDrawer.classList.add('is-active');\n    menuItems.forEach(item => item.setAttribute('tabindex', '0'));\n    menuItems[0].focus();\n\n    menuItems[0].addEventListener('keydown', handleMenuItemTabLeftFactory(navigationDrawer));\n    menuItems[menuItems.length - 1].addEventListener(\n      'keydown',\n      handleMenuItemTabRightFactory(navigationDrawer)\n    );\n  };\n\n  const handleMenuItemTabLeftFactory = (navigationDrawer: HTMLElement) => {\n    return (e: KeyboardEvent) => {\n      if (e.key === 'Tab' && e.shiftKey) {\n        e.preventDefault();\n        handleNavigationDrawerInactive(navigationDrawer);\n      }\n    };\n  };\n\n  const handleMenuItemTabRightFactory = (navigationDrawer: HTMLElement) => {\n    return (e: KeyboardEvent) => {\n      if (e.key === 'Tab' && !e.shiftKey) {\n        e.preventDefault();\n        handleNavigationDrawerInactive(navigationDrawer);\n      }\n    };\n  };\n\n  const prepMobileNavigationDrawer = (navigationDrawer: HTMLElement) => {\n    const isSubnav = getNavigationDrawerIsSubnav(navigationDrawer);\n    const menuItems = getNavigationDrawerMenuItems(navigationDrawer);\n    navigationDrawer.addEventListener('keyup', e => {\n      if (e.key === 'Escape') {\n        handleNavigationDrawerInactive(navigationDrawer);\n      }\n    });\n\n    menuItems.forEach(item => {\n      const parentLi = item.closest('li');\n      if (parentLi && parentLi.classList.contains('js-mobile-subnav-trigger')) {\n        const submenu = parentLi.querySelector('.go-NavigationDrawer-submenuItem') as HTMLElement;\n        item.addEventListener('click', () => {\n          handleNavigationDrawerActive(submenu);\n        });\n      }\n    });\n    if (isSubnav) {\n      handleNavigationDrawerInactive(navigationDrawer);\n      navigationDrawer\n        ?.querySelector('.go-NavigationDrawer-header')\n        ?.addEventListener('click', e => {\n          e.preventDefault();\n          handleNavigationDrawerInactive(navigationDrawer);\n        });\n    }\n  };\n\n  document\n    .querySelectorAll('.go-NavigationDrawer')\n    .forEach(drawer => prepMobileNavigationDrawer(drawer as HTMLElement));\n\n  handleNavigationDrawerInactive(header);\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, accessibility 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$=\"${hash}\"]`)?.value;\n    if (value) {\n      select.value = value;\n    }\n  }, 50);\n  return label;\n}\n", "/**\n * @license\n * Copyright 2021 The Go Authors. All rights reserved.\n * Use of this source code is governed by a BSD-style\n * license that can be found in the LICENSE file.\n */\n\ninterface Window {\n  dialogPolyfill?: {\n    registerDialog: (el: HTMLDialogElement) => void;\n  };\n}\n\ndeclare const window: Window;\n\n/**\n * ModalController registers a dialog element with the polyfill if\n * necessary for the current browser, add adds event listeners to\n * close and open modals.\n */\nexport class ModalController {\n  constructor(private el: HTMLDialogElement) {\n    if (window.dialogPolyfill) {\n      window.dialogPolyfill.registerDialog(el);\n    }\n    this.init();\n  }\n\n  init() {\n    const button = document.querySelector<HTMLButtonElement>(`[aria-controls=\"${this.el.id}\"]`);\n    if (button) {\n      button.addEventListener('click', () => {\n        if (this.el.showModal) {\n          this.el.showModal();\n        } else {\n          this.el.setAttribute('opened', 'true');\n        }\n        this.el.querySelector('input')?.focus();\n      });\n    }\n    for (const btn of this.el.querySelectorAll<HTMLButtonElement>('[data-modal-close]')) {\n      btn.addEventListener('click', () => {\n        if (this.el.close) {\n          this.el.close();\n        } else {\n          this.el.removeAttribute('opened');\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\nexport function initModals(): void {\n  const jumpDialog = document.querySelector<HTMLDialogElement>('.JumpDialog');\n  const jumpBody = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-body');\n  const jumpList = jumpDialog?.querySelector<HTMLDivElement>('.JumpDialog-list');\n  const jumpFilter = jumpDialog?.querySelector<HTMLInputElement>('.JumpDialog-input');\n  const doc = document.querySelector<HTMLDivElement>('.js-documentation');\n\n  interface JumpListItem {\n    link: HTMLAnchorElement;\n    name: string;\n    kind: string;\n    lower: string;\n  }\n\n  let 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.\n  function 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\n  function 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\n  let lastFilterValue: string; // The last contents of the filter text box.\n  let 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.\n  function 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.\n  function 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.\n  function 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\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      if (jumpDialog?.open || shortcutsDialog?.open) {\n        return;\n      }\n      jumpDialog?.showModal?.();\n      jumpFilter?.focus();\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\nwindow.addEventListener('load', () => {\n  for (const el of document.querySelectorAll<HTMLButtonElement>('.js-clipboard')) {\n    new ClipboardController(el);\n  }\n\n  for (const el of document.querySelectorAll<HTMLDialogElement>('.js-modal')) {\n    new ModalController(el);\n  }\n\n  for (const t of document.querySelectorAll<HTMLDetailsElement>('.js-tooltip')) {\n    new ToolTipController(t);\n  }\n\n  for (const el of document.querySelectorAll<HTMLSelectElement>('.js-selectNav')) {\n    new SelectNavController(el);\n  }\n\n  for (const el of document.querySelectorAll<HTMLSelectElement>('.js-carousel')) {\n    new CarouselController(el);\n  }\n\n  for (const el of document.querySelectorAll('.js-toggleTheme')) {\n    el.addEventListener('click', () => {\n      toggleTheme();\n    });\n  }\n\n  if (document.querySelector<HTMLElement>('.js-gtmID')?.dataset.gtmid && window.dataLayer) {\n    analytics.func(function () {\n      removeUTMSource();\n    });\n  } else {\n    removeUTMSource();\n  }\n\n  registerHeaderListeners();\n  registerSearchFormListeners();\n  initModals();\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  let canonicalURLPath = document.querySelector<HTMLDivElement>('.js-canonicalURLPath')?.dataset[\n    'canonicalUrlPath'\n  ];\n  if (canonicalURLPath && canonicalURLPath !== '') {\n    const fragment = window.location.hash;\n    if (fragment) {\n      canonicalURLPath += fragment;\n    }\n    window.history.replaceState(null, '', canonicalURLPath);\n  }\n});\n\n/**\n * setupGoogleTagManager initializes 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\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  let domain = '';\n  if (location.hostname.endsWith('go.dev')) {\n    domain = 'domain=.go.dev;';\n  }\n  document.documentElement.setAttribute('data-theme', nextTheme);\n  document.cookie = `prefers-color-scheme=${nextTheme};${domain}path=/;max-age=31536000;`;\n}\n"],
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   "names": []
 }
diff --git a/static/frontend/frontend.min.css b/static/frontend/frontend.min.css
index 2490676..9a5fdff 100644
--- a/static/frontend/frontend.min.css
+++ b/static/frontend/frontend.min.css
@@ -3,7 +3,7 @@
  * Use of this source code is governed by a BSD-style
  * license that can be found in the LICENSE file.
  */
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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-link: var(--turq-med);--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: 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.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;margin:-.5rem 0}.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],[data-theme=light] .go-Footer-listItem 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.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;min-height:2.5rem;padding:.5rem var(--gutter)}.Site--wide .go-Banner-inner{max-width:98rem}.go-Banner--full 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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;position:relative}.go-Header-menu{align-items:stretch;display:flex;height:100%;list-style:none;margin:0;padding:0}.go-Header-submenu{padding:1.5rem 1.5rem 0;list-style-type:none;background:transparent;visibility:hidden;opacity:0;display:none;transition:all .2s ease;margin-top:3.5rem;position:absolute;flex-direction:column;flex-wrap:wrap;color:var(--color-text);background-color:var(--color-background);border:.0625rem solid #007d9d;border-width:0 .0625rem .0625rem}.go-Header-menuItem:hover>.js-desktop-menu-hover:not(.forced-closed)~.go-Header-submenu,.go-Header-menuItem:focus-within>.js-desktop-menu-hover:not(.forced-closed)~.go-Header-submenu{visibility:visible;opacity:1;display:flex}.go-Header-menuItem .go-Header-submenuItem a:link,.go-Header-menuItem 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a:hover{border-bottom-color:var(--white)}.go-Header-menuItem:hover>a:not(.forced-closed).js-desktop-menu-hover,.go-Header-menuItem:focus-within>a:not(.forced-closed).js-desktop-menu-hover{background:var(--white);color:var(--color-text-link);border-color:var(--white)}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .go-Header-menuItem:hover>a:not(.forced-closed).js-desktop-menu-hover .go-Icon,:root:not([data-theme="light"]) .go-Header-menuItem:focus-within>a:not(.forced-closed).js-desktop-menu-hover .go-Icon{filter:brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(158deg) brightness(83%) contrast(157%)}:root:not([data-theme="light"]) .go-Header-submenuItem .go-Icon:not(.go-Icon--accented){filter:brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(163deg) brightness(80%) contrast(157%)}}.go-NavigationDrawer-listItem>div:not(.go-NavigationDrawer),.go-NavigationDrawer-listItem a:link,.go-NavigationDrawer-listItem 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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(--color-background);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{border-bottom:1px solid #eeeeee;margin-bottom:.5rem}.go-NavigationDrawer-submenuItem{width:100%}.go-NavigationDrawer-submenuItem .go-NavigationDrawer-header{min-height:4.0625rem;font-size:1.375rem;display:flex;align-items:center;justify-content:flex-start;padding:.5rem .5rem .5rem 1.5rem;color:var(--color-text-link)}.go-NavigationDrawer-submenuItem .go-NavigationDrawer-header>a{display:flex;margin-left:0}.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;color:var(--color-text-subtle)}.go-NavigationDrawer-listItem--active{background-color:var(--blue);border-radius:.4rem}.go-NavigationDrawer-listItem .material-icons{color:var(--color-brand-primary);margin-right:.5rem;display:inline-block;vertical-align:sub;text-decoration:none}@media only screen and (max-width: 57.7rem){.go-NavigationDrawer-listItem .go-Header-socialIcons{padding:.5rem 0}.go-NavigationDrawer-listItem a.go-Header-socialIcon{padding:0 .5rem;margin:0;display:inline-block}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .go-NavigationDrawer-listItem .go-Icon:not(.go-Icon--accented){filter:brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(163deg) brightness(80%) contrast(157%)}}}.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}.depsdev-Icon{height:1.125em;vertical-align:text-bottom;width:auto}.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:.25rem .5rem;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 a:not(:hover){color:var(--color-text);text-decoration:underline}[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;inset:0;background:rgba(0,0,0,.1)}._dialog_overlay{position:fixed;inset: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],.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: 1.5rem;--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 rgb(0 112 210 / 60%)}[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{--gap: 2rem;--scroll-margin: calc( var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 1rem )}}*: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,[data-theme=dark] .ShortcutsDialog-themeDark,[data-theme=""] .ShortcutsDialog-themeAuto,[data-theme=auto] .ShortcutsDialog-themeAuto{display:initial}
+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{color:var(--color-brand-primary);text-decoration:underline}a:hover>*{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 var(--color-button-inverted-text)}.go-Button:focus{filter:contrast(.95)}.go-Button--inverted:focus{border-color:var(--color-button-inverted-text)}.go-Button:active{box-shadow:none;filter:contrast(.85)}.go-Button:disabled{background-color:var(--color-button-disabled);box-shadow:none;color:var(--color-button-text-disabled);cursor:initial;filter:none;text-decoration:none}.go-Button--accented:disabled{background-color:var(--color-button-accented-disabled);color:var(--color-button-accented-text-disabled)}.go-Button--inverted:disabled,.go-Button--text:disabled,.go-Button--inline:disabled{background-color:var(--color-button-inverted-disabled);color:var(--color-button-inverted-text-disabled)}.go-Button--inline:disabled{background-color:transparent}.go-Breadcrumb ol{line-height:1.5rem;white-space:initial}.go-Breadcrumb li{align-items:center;color:var(--color-text-subtle);display:inline-flex;font-size:.875rem}.go-Breadcrumb li:not(:last-child):after{content:">";padding:0 .5rem}.go-Breadcrumb li:last-child>a{color:var(--color-text-subtle)}.go-Breadcrumb li>.go-Clipboard{margin:0 .5rem}.go-Carousel{align-items:center;display:flex;flex-direction:column;position:relative;text-align:center}.go-Carousel-slide{margin:.5rem 3rem}.go-Carousel-slide[aria-hidden]{display:none}.go-Carousel-prevSlide{left:0}.go-Carousel-nextSlide{right:0}.go-Carousel-prevSlide,.go-Carousel-nextSlide{background-color:transparent;border-radius:var(--border-radius);font-size:1.5rem;height:2.75rem;margin-top:-1.375rem;opacity:0;position:absolute;top:50%;width:2.75rem}.go-Carousel-prevSlide:hover,.go-Carousel-nextSlide:hover{background-color:var(--color-background-accented);cursor:pointer}.go-Carousel:hover .go-Carousel-prevSlide,.go-Carousel:hover .go-Carousel-nextSlide,.go-Carousel:focus-within .go-Carousel-prevSlide,.go-Carousel:focus-within .go-Carousel-nextSlide{opacity:1}.go-Carousel-dots{display:flex;font-size:.4375rem;gap:.5rem}.go-Carousel-dot{background-color:var(--color-border);border-radius:2rem;height:.4375rem;width:.4375rem}.go-Carousel-dot--active,.go-Carousel-dot:hover{background-color:var(--color-text-subtle)}.go-Carousel-obscured{border:0;clip:rect(0 0 0 0);height:.0625rem;margin:-.0625rem;overflow:hidden;padding:0;position:absolute;width:.0625rem}.go-Chip{background:var(--color-button);border:.0625rem solid var(--color-button);border-radius:1.25rem;color:var(--color-button-text);font-size:.75rem;padding:.125rem .625rem}.go-Chip--accented{background:var(--color-button-accented);border:.0625rem solid var(--color-button-accented);color:var(--color-button-accented-text)}.go-Chip--inverted{background:var(--color-button-inverted);border:var(--border);color:var(--color-text)}.go-Chip--highlighted{background:var(--color-background-highlighted-link);border-color:var(--color-background-highlighted-link);color:var(--color-brand-primary)}.go-Chip--alert{background:var(--pink);border:.0625rem solid var(--pink);color:var(--color-text-inverted)}.go-Chip--vuln{background:var(--pink-light);border:.0625rem solid var(--pink-light);color:var(--color-text-inverted)}.go-Chip--subtle{background-color:var(--color-background-accented);border-color:transparent;color:var(--color-text-subtle)}.go-Clipboard{position:relative}.go-Clipboard:before{background-color:var(--color-background-inverted);border-radius:var(--border-radius);color:var(--color-text-inverted);content:attr(data-tooltip);display:block;font-size:.9em;left:calc(100% + .125rem);padding:.25rem .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: #c85e7a;--pink-light: #fdecf1;--purple: #542c7d;--slate: #253443;--white: #fff;--yellow: #fceea5;--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-link: var(--turq-dark);--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-link: var(--turq-med);--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-link: var(--turq-med);--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;margin:-.5rem 0}.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],[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;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;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;position:relative}.go-Header-menu{align-items:stretch;display:flex;height:100%;list-style:none;margin:0;padding:0}.go-Header-submenu{padding:1.5rem 1.5rem 0;list-style-type:none;background:transparent;visibility:hidden;opacity:0;display:none;transition:all .2s ease;margin-top:3.5rem;position:absolute;flex-direction:column;flex-wrap:wrap;color:var(--color-text);background-color:var(--color-background);border:.0625rem solid #007d9d;border-width:0 .0625rem .0625rem}.go-Header-menuItem:hover>.js-desktop-menu-hover:not(.forced-closed)~.go-Header-submenu,.go-Header-menuItem:focus-within>.js-desktop-menu-hover:not(.forced-closed)~.go-Header-submenu{visibility:visible;opacity:1;display:flex}.go-Header-menuItem .go-Header-submenuItem a:link,.go-Header-menuItem .go-Header-submenuItem a:visited{margin:0;margin-bottom:-.125rem;padding:0;border-bottom:none;font-weight:400;color:var(--color-text-link);display:inline-flex;align-items:baseline}.go-Header-menuItem .go-Icon{font-size:1.25rem;filter:brightness(0%) saturate(100%) invert(100%)}.go-Header-menuItem .go-Header-submenuItem .go-Icon,.go-NavigationDrawer-listItem .go-Icon{filter:brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(162deg) brightness(71%) contrast(177%)}.go-Header-submenu .go-Header-submenuItem i{margin-left:.25rem;transform:translateY(.1rem);font-size:.75rem}.go-Header-menu .go-Header-submenu--why{width:18.5rem;left:-1px}.go-Header-menu .go-Header-submenu--docs{left:-12rem;height:20.78rem;width:37.25rem}.go-Header-menu .go-Header-submenu--community{right:-1px;height:18.4rem;width:37.25rem}.go-Header-socialIcons{display:flex;flex-wrap:wrap}.go-Header-submenu .go-Header-submenuItem a.go-Header-socialIcon{flex:0 1 auto;display:inline-flex;width:auto}.go-Header-submenu .go-Header-submenuItem a.go-Header-socialIcon:not(:last-child){margin-right:.75rem}@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 .js-desktop-menu-hover img{pointer-events: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(--color-text);display:inline-flex;padding:0 1.5rem;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:700}.go-Header-menuItem a:hover{border-bottom-color:var(--white)}.go-Header-menuItem:hover>a:not(.forced-closed).js-desktop-menu-hover,.go-Header-menuItem:focus-within>a:not(.forced-closed).js-desktop-menu-hover{background:var(--white);color:var(--color-text-link);border-color:var(--white)}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .go-Header-menuItem:hover>a:not(.forced-closed).js-desktop-menu-hover .go-Icon,:root:not([data-theme="light"]) .go-Header-menuItem:focus-within>a:not(.forced-closed).js-desktop-menu-hover .go-Icon{filter:brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(158deg) brightness(83%) contrast(157%)}:root:not([data-theme="light"]) .go-Header-submenuItem .go-Icon:not(.go-Icon--accented){filter:brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(163deg) brightness(80%) contrast(157%)}}.go-NavigationDrawer-listItem>div:not(.go-NavigationDrawer),.go-NavigationDrawer-listItem a:link,.go-NavigationDrawer-listItem a:visited{margin:0 1rem;padding:.5rem;display:block}.go-NavigationDrawer-listItem>span{color:var(--gray-2)}.go-Header-inner--dark .go-Header-menuItem a:link,.go-Header-inner--dark .go-Header-menuItem a:visited{color:var(--white)}.go-NavigationDrawer-listItem.go-NavigationDrawer-hasSubnav>a i{float:right}.go-Header-inner--dark .go-Header-menuItem .go-Header-submenuItem{color:var(--color-text-link)}.go-Header-inner--dark .go-Header-menuItem .js-desktop-menu-hover.is-expanded{color:var(--color-text-link);background-color:var(--white)}.go-Header-inner--dark .go-Header-menuItem .go-Header-submenu a:link,.go-Header-inner--dark .go-Header-menuItem .go-Header-submenu a:visited{color:var(--color-text-link);display:inline-flex;align-items:baseline;margin-bottom:-2px;width:auto}.go-Header-submenu .go-Header-submenuItem a:link,.go-Header-submenu .go-Header-submenuItem a:visited{margin:0;padding:0;border-bottom:none;font-weight:400}.go-Header-inner--dark .go-Header-menuItem:hover>a:not(.forced-closed).js-desktop-menu-hover,.go-Header-inner--dark .go-Header-menuItem:focus-within>a:not(.forced-closed).js-desktop-menu-hover{background:var(--color-background);border-color:var(--color-background)}.go-Header-submenu p{max-width:15.5rem}.go-Header-submenu a:link:hover,.go-Header-submenu a:visited:hover{border-bottom:2px solid var(--turq-dark);text-decoration:none}.go-Header-submenu a:link:hover>*,.go-Header-submenu a:visited:hover>*{text-decoration:none}.go-Header-submenu .go-Header-submenuItem{line-height:1;padding-bottom:1.5rem}.go-Header-submenu .go-Header-submenuItem p{font-size:.875rem;color:var(--color-text-subtle);margin-top:.55rem}.go-Header-inner--dark .go-Header-submenu .go-Header-submenuItem p{color:var(--color-text-subtle)}.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(--color-background);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{border-bottom:1px solid #eeeeee;margin-bottom:.5rem}.go-NavigationDrawer-submenuItem{width:100%}.go-NavigationDrawer-submenuItem .go-NavigationDrawer-header{min-height:4.0625rem;font-size:1.375rem;display:flex;align-items:center;justify-content:flex-start;padding:.5rem .5rem .5rem 1.5rem;color:var(--color-text-link)}.go-NavigationDrawer-submenuItem .go-NavigationDrawer-header>a{display:flex;margin-left:0}.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;color:var(--color-text-subtle)}.go-NavigationDrawer-listItem--active{background-color:var(--blue);border-radius:.4rem}.go-NavigationDrawer-listItem .material-icons{color:var(--color-brand-primary);margin-right:.5rem;display:inline-block;vertical-align:sub;text-decoration:none}@media only screen and (max-width: 57.7rem){.go-NavigationDrawer-listItem .go-Header-socialIcons{padding:.5rem 0}.go-NavigationDrawer-listItem a.go-Header-socialIcon{padding:0 .5rem;margin:0;display:inline-block}@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .go-NavigationDrawer-listItem .go-Icon:not(.go-Icon--accented){filter:brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(163deg) brightness(80%) contrast(157%)}}}.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}.depsdev-Icon{height:1.125em;vertical-align:text-bottom;width:auto}.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:.25rem .5rem;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 a:not(:hover){color:var(--color-text);text-decoration:underline}[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;inset:0;background:rgba(0,0,0,.1)}._dialog_overlay{position:fixed;inset: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],.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: 1.5rem;--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 rgb(0 112 210 / 60%)}[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{--gap: 2rem;--scroll-margin: calc( var(--js-sticky-header-height, 3.5rem) + var(--js-sticky-nav-height, 0) + 1rem )}}*: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,[data-theme=dark] .ShortcutsDialog-themeDark,[data-theme=""] .ShortcutsDialog-themeAuto,[data-theme=auto] .ShortcutsDialog-themeAuto{display:initial}
 /*!
  * Copyright 2020 The Go Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style
diff --git a/static/frontend/frontend.min.css.map b/static/frontend/frontend.min.css.map
index 93dcb2a..420446c 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", "_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}\n\nbody {\n  line-height: 1;\n}\n\nol,\nul {\n  list-style: none;\n}\n\nblockquote,\nq {\n  quotes: none;\n}\n\nblockquote::before,\nblockquote::after,\nq::before,\nq::after {\n  content: '';\n  content: none;\n}\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 {\n  color: var(--color-brand-primary);\n  text-decoration: underline;\n}\na:hover > * {\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: #c85e7a;\n  --pink-light: #fdecf1;\n  --purple: #542c7d;\n  --slate: #253443; /* Footer background. */\n  --white: #fff;\n  --yellow: #fceea5;\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-link: var(--turq-dark);\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-link: var(--turq-med);\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-link: var(--turq-med);\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  margin: -0.5rem 0;\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  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  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\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  position: relative;\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\n.go-Header-submenu {\n  padding: 1.5rem 1.5rem 0;\n  list-style-type: none;\n  background: transparent;\n  visibility: hidden;\n  opacity: 0;\n  display: none;\n  transition: all 0.2s ease;\n  margin-top: 3.5rem;\n  position: absolute;\n  flex-direction: column;\n  flex-wrap: wrap;\n  color: var(--color-text);\n  background-color: var(--color-background);\n  border: 0.0625rem solid #007d9d;\n  border-width: 0 0.0625rem 0.0625rem;\n}\n\n.go-Header-menuItem:hover > .js-desktop-menu-hover:not(.forced-closed) ~ .go-Header-submenu,\n.go-Header-menuItem:focus-within > .js-desktop-menu-hover:not(.forced-closed) ~ .go-Header-submenu {\n  visibility: visible;\n  opacity: 1;\n  display: flex;\n}\n.go-Header-menuItem .go-Header-submenuItem a:link,\n.go-Header-menuItem .go-Header-submenuItem a:visited {\n  margin: 0;\n  margin-bottom: -0.125rem;\n  padding: 0;\n  border-bottom: none;\n  font-weight: 400;\n  color: var(--color-text-link);\n  display: inline-flex;\n  align-items: baseline;\n}\n.go-Header-menuItem .go-Icon {\n  font-size: 1.25rem;\n  filter: brightness(0%) saturate(100%) invert(100%);\n}\n.go-Header-menuItem .go-Header-submenuItem .go-Icon,\n.go-NavigationDrawer-listItem .go-Icon {\n  filter: brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(162deg)\n    brightness(71%) contrast(177%);\n}\n\n.go-Header-submenu .go-Header-submenuItem i {\n  margin-left: 0.25rem;\n  transform: translateY(0.1rem); /* to get bottom alignment w/ text  */\n  font-size: 0.75rem;\n}\n\n.go-Header-menu .go-Header-submenu--why {\n  width: 18.5rem;\n  left: -1px;\n}\n.go-Header-menu .go-Header-submenu--docs {\n  left: -12rem;\n  height: 20.78rem;\n  width: 37.25rem;\n}\n.go-Header-menu .go-Header-submenu--community {\n  right: -1px;\n  height: 18.4rem;\n  width: 37.25rem;\n}\n.go-Header-socialIcons {\n  display: flex;\n  flex-wrap: wrap;\n}\n.go-Header-submenu .go-Header-submenuItem a.go-Header-socialIcon {\n  flex: 0 1 auto;\n  display: inline-flex;\n  width: auto;\n}\n.go-Header-submenu .go-Header-submenuItem a.go-Header-socialIcon:not(:last-child) {\n  margin-right: 0.75rem;\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\n.go-Header-menuItem .js-desktop-menu-hover img {\n  pointer-events: none;\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(--color-text);\n  display: inline-flex;\n  padding: 0 1.5rem;\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}\n.go-Header-menuItem:hover > a:not(.forced-closed).js-desktop-menu-hover,\n.go-Header-menuItem:focus-within > a:not(.forced-closed).js-desktop-menu-hover {\n  background: var(--white);\n  color: var(--color-text-link);\n  border-color: var(--white);\n}\n\n/* Need to get around icon.css color management */\n@media (prefers-color-scheme: dark) {\n  :root:not([data-theme='light'])\n    .go-Header-menuItem:hover\n    > a:not(.forced-closed).js-desktop-menu-hover\n    .go-Icon,\n  :root:not([data-theme='light'])\n    .go-Header-menuItem:focus-within\n    > a:not(.forced-closed).js-desktop-menu-hover\n    .go-Icon {\n    filter: brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(158deg)\n      brightness(83%) contrast(157%);\n  }\n  :root:not([data-theme='light']) .go-Header-submenuItem .go-Icon:not(.go-Icon--accented) {\n    filter: brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(163deg)\n      brightness(80%) contrast(157%);\n  }\n}\n.go-NavigationDrawer-listItem > div:not(.go-NavigationDrawer),\n.go-NavigationDrawer-listItem a:link,\n.go-NavigationDrawer-listItem a:visited {\n  margin: 0 1rem;\n  padding: 0.5rem;\n  display: block;\n}\n\n.go-NavigationDrawer-listItem > span {\n  color: var(--gray-2);\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.go-NavigationDrawer-listItem.go-NavigationDrawer-hasSubnav > a i {\n  float: right;\n}\n.go-Header-inner--dark .go-Header-menuItem .go-Header-submenuItem {\n  color: var(--color-text-link);\n}\n.go-Header-inner--dark .go-Header-menuItem .js-desktop-menu-hover.is-expanded {\n  color: var(--color-text-link);\n  background-color: var(--white);\n}\n.go-Header-inner--dark .go-Header-menuItem .go-Header-submenu a:link,\n.go-Header-inner--dark .go-Header-menuItem .go-Header-submenu a:visited {\n  color: var(--color-text-link);\n  display: inline-flex;\n  align-items: baseline;\n  margin-bottom: -2px;\n  width: auto;\n}\n.go-Header-submenu .go-Header-submenuItem a:link,\n.go-Header-submenu .go-Header-submenuItem a:visited {\n  margin: 0;\n  padding: 0;\n  border-bottom: none;\n  font-weight: 400;\n}\n.go-Header-inner--dark .go-Header-menuItem:hover > a:not(.forced-closed).js-desktop-menu-hover,\n.go-Header-inner--dark\n  .go-Header-menuItem:focus-within\n  > a:not(.forced-closed).js-desktop-menu-hover {\n  background: var(--color-background);\n  border-color: var(--color-background);\n}\n.go-Header-submenu p {\n  max-width: 15.5rem;\n}\n.go-Header-submenu a:link:hover,\n.go-Header-submenu a:visited:hover {\n  border-bottom: 2px solid var(--turq-dark);\n  text-decoration: none;\n}\n.go-Header-submenu a:link:hover > *,\n.go-Header-submenu a:visited:hover > * {\n  text-decoration: none;\n}\n.go-Header-submenu .go-Header-submenuItem {\n  padding-bottom: 1.5rem;\n}\n.go-Header-submenu .go-Header-submenuItem p {\n  font-size: 0.875rem;\n  color: var(--color-text-subtle);\n  margin-top: 0.55rem;\n}\n.go-Header-inner--dark .go-Header-submenu .go-Header-submenuItem p {\n  color: var(--color-text-subtle);\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(--color-background);\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\n.go-NavigationDrawer.is-active {\n  transform: translateX(0);\n}\n.go-NavigationDrawer-header {\n  border-bottom: 1px solid #eeeeee;\n  margin-bottom: 0.5rem;\n}\n.go-NavigationDrawer-submenuItem {\n  width: 100%;\n}\n.go-NavigationDrawer-submenuItem .go-NavigationDrawer-header {\n  min-height: 4.0625rem;\n  font-size: 1.375rem;\n  display: flex;\n  align-items: center;\n  justify-content: flex-start;\n  padding: 0.5rem;\n  padding-left: 1.5rem;\n  color: var(--color-text-link);\n}\n.go-NavigationDrawer-submenuItem .go-NavigationDrawer-header > a {\n  display: flex;\n  margin-left: 0;\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  color: var(--color-text-subtle);\n}\n.go-NavigationDrawer-listItem--active {\n  background-color: var(--blue);\n  border-radius: 0.4rem;\n}\n.go-NavigationDrawer-listItem .material-icons {\n  color: var(--color-brand-primary);\n  margin-right: 0.5rem;\n  display: inline-block;\n  vertical-align: sub;\n  text-decoration: none;\n}\n@media only screen and (max-width: 57.7rem) {\n  .go-NavigationDrawer-listItem .go-Header-socialIcons {\n    padding: 0.5rem 0;\n  }\n\n  .go-NavigationDrawer-listItem a.go-Header-socialIcon {\n    padding: 0 0.5rem;\n    margin: 0;\n    display: inline-block;\n  }\n\n  @media (prefers-color-scheme: dark) {\n    :root:not([data-theme='light']) .go-NavigationDrawer-listItem .go-Icon:not(.go-Icon--accented) {\n      filter: brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(163deg)\n        brightness(80%) contrast(157%);\n    }\n  }\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.depsdev-Icon {\n  height: 1.125em;\n  vertical-align: text-bottom;\n  width: auto;\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: 0.25rem 0.5rem;\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[data-theme='dark'] .go-Message a:not(:hover) {\n  color: var(--color-text);\n  text-decoration: underline;\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", "/*!\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: 1.5rem;\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 rgb(0 112 210 / 60%);\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    --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\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\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\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\n.JumpDialog-list {\n  display: flex;\n  flex-direction: column;\n}\n\n.JumpDialog-input {\n  width: 100%;\n}\n\n.JumpDialog a {\n  padding: 0.25rem;\n  text-decoration: none;\n}\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\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\n[data-theme='light'] .ShortcutsDialog-themeLight {\n  display: initial;\n}\n\n[data-theme='dark'] .ShortcutsDialog-themeDark {\n  display: initial;\n}\n\n[data-theme=''] .ShortcutsDialog-themeAuto,\n[data-theme='auto'] .ShortcutsDialog-themeAuto {\n  display: initial;\n}\n"],
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+  "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}\n\nbody {\n  line-height: 1;\n}\n\nol,\nul {\n  list-style: none;\n}\n\nblockquote,\nq {\n  quotes: none;\n}\n\nblockquote::before,\nblockquote::after,\nq::before,\nq::after {\n  content: '';\n  content: none;\n}\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 {\n  color: var(--color-brand-primary);\n  text-decoration: underline;\n}\na:hover > * {\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: #c85e7a;\n  --pink-light: #fdecf1;\n  --purple: #542c7d;\n  --slate: #253443; /* Footer background. */\n  --white: #fff;\n  --yellow: #fceea5;\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-link: var(--turq-dark);\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-link: var(--turq-med);\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-link: var(--turq-med);\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  margin: -0.5rem 0;\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  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  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\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  position: relative;\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\n.go-Header-submenu {\n  padding: 1.5rem 1.5rem 0;\n  list-style-type: none;\n  background: transparent;\n  visibility: hidden;\n  opacity: 0;\n  display: none;\n  transition: all 0.2s ease;\n  margin-top: 3.5rem;\n  position: absolute;\n  flex-direction: column;\n  flex-wrap: wrap;\n  color: var(--color-text);\n  background-color: var(--color-background);\n  border: 0.0625rem solid #007d9d;\n  border-width: 0 0.0625rem 0.0625rem;\n}\n\n.go-Header-menuItem:hover > .js-desktop-menu-hover:not(.forced-closed) ~ .go-Header-submenu,\n.go-Header-menuItem:focus-within > .js-desktop-menu-hover:not(.forced-closed) ~ .go-Header-submenu {\n  visibility: visible;\n  opacity: 1;\n  display: flex;\n}\n.go-Header-menuItem .go-Header-submenuItem a:link,\n.go-Header-menuItem .go-Header-submenuItem a:visited {\n  margin: 0;\n  margin-bottom: -0.125rem;\n  padding: 0;\n  border-bottom: none;\n  font-weight: 400;\n  color: var(--color-text-link);\n  display: inline-flex;\n  align-items: baseline;\n}\n.go-Header-menuItem .go-Icon {\n  font-size: 1.25rem;\n  filter: brightness(0%) saturate(100%) invert(100%);\n}\n.go-Header-menuItem .go-Header-submenuItem .go-Icon,\n.go-NavigationDrawer-listItem .go-Icon {\n  filter: brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(162deg)\n    brightness(71%) contrast(177%);\n}\n\n.go-Header-submenu .go-Header-submenuItem i {\n  margin-left: 0.25rem;\n  transform: translateY(0.1rem); /* to get bottom alignment w/ text  */\n  font-size: 0.75rem;\n}\n\n.go-Header-menu .go-Header-submenu--why {\n  width: 18.5rem;\n  left: -1px;\n}\n.go-Header-menu .go-Header-submenu--docs {\n  left: -12rem;\n  height: 20.78rem;\n  width: 37.25rem;\n}\n.go-Header-menu .go-Header-submenu--community {\n  right: -1px;\n  height: 18.4rem;\n  width: 37.25rem;\n}\n.go-Header-socialIcons {\n  display: flex;\n  flex-wrap: wrap;\n}\n.go-Header-submenu .go-Header-submenuItem a.go-Header-socialIcon {\n  flex: 0 1 auto;\n  display: inline-flex;\n  width: auto;\n}\n.go-Header-submenu .go-Header-submenuItem a.go-Header-socialIcon:not(:last-child) {\n  margin-right: 0.75rem;\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\n.go-Header-menuItem .js-desktop-menu-hover img {\n  pointer-events: none;\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(--color-text);\n  display: inline-flex;\n  padding: 0 1.5rem;\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}\n.go-Header-menuItem:hover > a:not(.forced-closed).js-desktop-menu-hover,\n.go-Header-menuItem:focus-within > a:not(.forced-closed).js-desktop-menu-hover {\n  background: var(--white);\n  color: var(--color-text-link);\n  border-color: var(--white);\n}\n\n/* Need to get around icon.css color management */\n@media (prefers-color-scheme: dark) {\n  :root:not([data-theme='light'])\n    .go-Header-menuItem:hover\n    > a:not(.forced-closed).js-desktop-menu-hover\n    .go-Icon,\n  :root:not([data-theme='light'])\n    .go-Header-menuItem:focus-within\n    > a:not(.forced-closed).js-desktop-menu-hover\n    .go-Icon {\n    filter: brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(158deg)\n      brightness(83%) contrast(157%);\n  }\n  :root:not([data-theme='light']) .go-Header-submenuItem .go-Icon:not(.go-Icon--accented) {\n    filter: brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(163deg)\n      brightness(80%) contrast(157%);\n  }\n}\n.go-NavigationDrawer-listItem > div:not(.go-NavigationDrawer),\n.go-NavigationDrawer-listItem a:link,\n.go-NavigationDrawer-listItem a:visited {\n  margin: 0 1rem;\n  padding: 0.5rem;\n  display: block;\n}\n\n.go-NavigationDrawer-listItem > span {\n  color: var(--gray-2);\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.go-NavigationDrawer-listItem.go-NavigationDrawer-hasSubnav > a i {\n  float: right;\n}\n.go-Header-inner--dark .go-Header-menuItem .go-Header-submenuItem {\n  color: var(--color-text-link);\n}\n.go-Header-inner--dark .go-Header-menuItem .js-desktop-menu-hover.is-expanded {\n  color: var(--color-text-link);\n  background-color: var(--white);\n}\n.go-Header-inner--dark .go-Header-menuItem .go-Header-submenu a:link,\n.go-Header-inner--dark .go-Header-menuItem .go-Header-submenu a:visited {\n  color: var(--color-text-link);\n  display: inline-flex;\n  align-items: baseline;\n  margin-bottom: -2px;\n  width: auto;\n}\n.go-Header-submenu .go-Header-submenuItem a:link,\n.go-Header-submenu .go-Header-submenuItem a:visited {\n  margin: 0;\n  padding: 0;\n  border-bottom: none;\n  font-weight: 400;\n}\n.go-Header-inner--dark .go-Header-menuItem:hover > a:not(.forced-closed).js-desktop-menu-hover,\n.go-Header-inner--dark\n  .go-Header-menuItem:focus-within\n  > a:not(.forced-closed).js-desktop-menu-hover {\n  background: var(--color-background);\n  border-color: var(--color-background);\n}\n.go-Header-submenu p {\n  max-width: 15.5rem;\n}\n.go-Header-submenu a:link:hover,\n.go-Header-submenu a:visited:hover {\n  border-bottom: 2px solid var(--turq-dark);\n  text-decoration: none;\n}\n.go-Header-submenu a:link:hover > *,\n.go-Header-submenu a:visited:hover > * {\n  text-decoration: none;\n}\n.go-Header-submenu .go-Header-submenuItem {\n  line-height: 1;\n  padding-bottom: 1.5rem;\n}\n.go-Header-submenu .go-Header-submenuItem p {\n  font-size: 0.875rem;\n  color: var(--color-text-subtle);\n  margin-top: 0.55rem;\n}\n.go-Header-inner--dark .go-Header-submenu .go-Header-submenuItem p {\n  color: var(--color-text-subtle);\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(--color-background);\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\n.go-NavigationDrawer.is-active {\n  transform: translateX(0);\n}\n.go-NavigationDrawer-header {\n  border-bottom: 1px solid #eeeeee;\n  margin-bottom: 0.5rem;\n}\n.go-NavigationDrawer-submenuItem {\n  width: 100%;\n}\n.go-NavigationDrawer-submenuItem .go-NavigationDrawer-header {\n  min-height: 4.0625rem;\n  font-size: 1.375rem;\n  display: flex;\n  align-items: center;\n  justify-content: flex-start;\n  padding: 0.5rem;\n  padding-left: 1.5rem;\n  color: var(--color-text-link);\n}\n.go-NavigationDrawer-submenuItem .go-NavigationDrawer-header > a {\n  display: flex;\n  margin-left: 0;\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  color: var(--color-text-subtle);\n}\n.go-NavigationDrawer-listItem--active {\n  background-color: var(--blue);\n  border-radius: 0.4rem;\n}\n.go-NavigationDrawer-listItem .material-icons {\n  color: var(--color-brand-primary);\n  margin-right: 0.5rem;\n  display: inline-block;\n  vertical-align: sub;\n  text-decoration: none;\n}\n@media only screen and (max-width: 57.7rem) {\n  .go-NavigationDrawer-listItem .go-Header-socialIcons {\n    padding: 0.5rem 0;\n  }\n\n  .go-NavigationDrawer-listItem a.go-Header-socialIcon {\n    padding: 0 0.5rem;\n    margin: 0;\n    display: inline-block;\n  }\n\n  @media (prefers-color-scheme: dark) {\n    :root:not([data-theme='light']) .go-NavigationDrawer-listItem .go-Icon:not(.go-Icon--accented) {\n      filter: brightness(0) saturate(100%) invert(60%) sepia(97%) saturate(125%) hue-rotate(163deg)\n        brightness(80%) contrast(157%);\n    }\n  }\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.depsdev-Icon {\n  height: 1.125em;\n  vertical-align: text-bottom;\n  width: auto;\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: 0.25rem 0.5rem;\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[data-theme='dark'] .go-Message a:not(:hover) {\n  color: var(--color-text);\n  text-decoration: underline;\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", "/*!\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: 1.5rem;\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 rgb(0 112 210 / 60%);\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    --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\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\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\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\n.JumpDialog-list {\n  display: flex;\n  flex-direction: column;\n}\n\n.JumpDialog-input {\n  width: 100%;\n}\n\n.JumpDialog a {\n  padding: 0.25rem;\n  text-decoration: none;\n}\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\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\n[data-theme='light'] .ShortcutsDialog-themeLight {\n  display: initial;\n}\n\n[data-theme='dark'] .ShortcutsDialog-themeDark {\n  display: initial;\n}\n\n[data-theme=''] .ShortcutsDialog-themeAuto,\n[data-theme='auto'] .ShortcutsDialog-themeAuto {\n  display: initial;\n}\n"],
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   "names": []
 }
diff --git a/static/frontend/unit/main/main.js b/static/frontend/unit/main/main.js
index 525c597..0f1e6d6 100644
--- a/static/frontend/unit/main/main.js
+++ b/static/frontend/unit/main/main.js
@@ -1,8 +1,8 @@
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+var h={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"},g=class{constructor(e){this.exampleEl=e;var t,i,s,r;this.exampleEl=e,this.anchorEl=e.querySelector("a"),this.errorEl=e.querySelector(h.EXAMPLE_ERROR),this.playButtonEl=e.querySelector(h.PLAY_BUTTON),this.shareButtonEl=e.querySelector(h.SHARE_BUTTON),this.formatButtonEl=e.querySelector(h.FORMAT_BUTTON),this.runButtonEl=e.querySelector(h.RUN_BUTTON),this.inputEl=this.makeTextArea(e.querySelector(h.EXAMPLE_INPUT)),this.outputEl=e.querySelector(h.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()),(r=this.runButtonEl)==null||r.addEventListener("click",()=>this.handleRunButtonClick()),!!this.inputEl&&(this.resize(),this.inputEl.addEventListener("keyup",()=>this.resize()),this.inputEl.addEventListener("keydown",l=>this.onKeydown(l)))}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)}setOutputHTML(e){this.outputEl&&(this.outputEl.innerHTML=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.setOutputHTML(`<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:r})=>{this.setOutputText(r||"Done."),s&&(this.setInputText(s),this.resize())}).catch(s=>{this.setErrorText(s)})}handleRunButtonClick(){var i,s,r,l;this.setOutputText("Waiting for remote server\u2026");let e=(s=(i=this.inputEl)==null?void 0:i.value)!=null?s:"",t=(l=(r=document.querySelector(".js-playgroundVars"))==null?void 0:r.dataset)!=null?l:{};t.modulepath!=="std"&&(e=e.concat(`
 -- go.mod --
 module play.ground
 
-require ${t.unitpath} ${t.version}
+require ${t.modulepath} ${t.version}
 `)),fetch("/play/compile",{method:"POST",body:JSON.stringify({body:e,version:2})}).then(a=>a.json()).then(async({Events:a,Errors:d})=>{this.setOutputText(d||"");for(let u of a||[])this.setOutputText(u.Message),await new Promise(m=>setTimeout(m,u.Delay/1e6))}).catch(a=>{this.setErrorText(a)})}};function y(){let n=location.hash.match(/^#(example-.*)$/);if(n){let i=document.getElementById(n[1]);i&&(i.open=!0)}let e=[...document.querySelectorAll(h.PLAY_HREF)],t=i=>e.find(s=>s.hash===i.getAnchorHash());for(let i of document.querySelectorAll(h.PLAY_CONTAINER)){let s=new g(i),r=t(s);r?r.addEventListener("click",()=>{s.expand()}):console.warn("example href not found")}}var f=class{constructor(e){this.el=e;this.el.addEventListener("change",t=>{let i=t.target,s=i.value;i.value.startsWith("/")||(s="/"+s),window.location.href=s})}};function L(n){let e=document.createElement("label");e.classList.add("go-Label"),e.setAttribute("aria-label","Menu");let t=document.createElement("select");t.classList.add("go-Select","js-selectNav"),e.appendChild(t);let i=document.createElement("optgroup");i.label="Outline",t.appendChild(i);let s={},r;for(let l of n.treeitems){if(Number(l.depth)>4)continue;l.groupTreeitem?(r=s[l.groupTreeitem.label],r||(r=s[l.groupTreeitem.label]=document.createElement("optgroup"),r.label=l.groupTreeitem.label,t.appendChild(r))):r=i;let a=document.createElement("option");a.label=l.label,a.textContent=l.label,a.value=l.el.href.replace(window.location.origin,"").replace("/",""),r.appendChild(a)}return n.addObserver(l=>{var u;let a=l.el.hash,d=(u=t.querySelector(`[value$="${a}"]`))==null?void 0:u.value;d&&(t.value=d)},50),e}var T=class{constructor(e){this.el=e;this.handleResize=()=>{this.el.style.setProperty("--js-tree-height","100vh"),this.el.style.setProperty("--js-tree-height",this.el.clientHeight+"px")};this.treeitems=[],this.firstChars=[],this.firstTreeitem=null,this.lastTreeitem=null,this.observerCallbacks=[],this.init()}init(){this.handleResize(),window.addEventListener("resize",this.handleResize),this.findTreeItems(),this.updateVisibleTreeitems(),this.observeTargets(),this.firstTreeitem&&(this.firstTreeitem.el.tabIndex=0)}observeTargets(){this.addObserver(i=>{this.expandTreeitem(i),this.setSelected(i)});let e=new Map,t=new IntersectionObserver(i=>{for(let s of i)e.set(s.target.id,s.isIntersecting||s.intersectionRatio===1);for(let[s,r]of e)if(r){let l=this.treeitems.find(a=>{var d;return(d=a.el)==null?void 0:d.href.endsWith(`#${s}`)});if(l)for(let a of this.observerCallbacks)a(l);break}},{threshold:1,rootMargin:"-60px 0px 0px 0px"});for(let i of 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A(r,this,i),this.treeitems.push(s),this.firstChars.push(s.label.substring(0,1).toLowerCase())),r.firstElementChild&&e(r,s),r=r.nextElementSibling};e(this.el,null),this.treeitems.map((t,i)=>t.index=i)}updateVisibleTreeitems(){this.firstTreeitem=this.treeitems[0];for(let e of this.treeitems){let t=e.groupTreeitem;for(e.isVisible=!0;t&&t.el!==this.el;)t.isExpanded()||(e.isVisible=!1),t=t.groupTreeitem;e.isVisible&&(this.lastTreeitem=e)}}setFocusToItem(e,t=!0){e.el.tabIndex=0,t&&e.el.focus();for(let i of this.treeitems)i!==e&&(i.el.tabIndex=-1)}getIndexFirstChars(e,t){for(let i=e;i<this.firstChars.length;i++)if(this.treeitems[i].isVisible&&t===this.firstChars[i])return i;return-1}},A=class{constructor(e,t,i){var l,a,d,u,m;e.tabIndex=-1,this.el=e,this.groupTreeitem=i,this.label=(a=(l=e.textContent)==null?void 0:l.trim())!=null?a:"",this.tree=t,this.depth=((i==null?void 0:i.depth)||0)+1,this.index=0;let s=e.parentElement;(s==null?void 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f(e.firstElementChild)}var o=document.querySelector(".js-readme"),b=document.querySelector(".js-readmeContent"),S=document.querySelector(".js-readmeOutline"),p=document.querySelectorAll(".js-readmeExpand"),k=document.querySelector(".js-readmeCollapse"),v=document.querySelector(".DocNavMobile-select");o&&b&&S&&p.length&&k&&(o.clientHeight>320&&(o==null||o.classList.remove("UnitReadme--expanded"),o==null||o.classList.add("UnitReadme--toggle")),window.location.hash.includes("readme")&&c(),v==null||v.addEventListener("change",n=>{n.target.value.startsWith("readme-")&&c()}),p.forEach(n=>n.addEventListener("click",e=>{e.preventDefault(),c(),o.scrollIntoView()})),k.addEventListener("click",n=>{n.preventDefault(),o.classList.remove("UnitReadme--expanded"),p[1]&&p[1].scrollIntoView({block:"center"})}),b.addEventListener("keyup",()=>{c()}),b.addEventListener("click",()=>{c()}),S.addEventListener("click",()=>{c()}),document.addEventListener("keydown",n=>{(n.ctrlKey||n.metaKey)&&n.key==="f"&&c()}));function c(){history.replaceState(null,"",`${location.pathname}#section-readme`),o==null||o.classList.add("UnitReadme--expanded")}function w(){var t;if(!location.hash)return;let n=document.getElementById(location.hash.slice(1)),e=(t=n==null?void 0:n.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(n=>{n.addEventListener("change",e=>{window.location.search=`?GOOS=${e.target.value}`})});
 /*!
  * @license
diff --git a/static/frontend/unit/main/main.js.map b/static/frontend/unit/main/main.js.map
index 540f8ab..f1b8149 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/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 accommodate 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  private setOutputHTML(output: string) {\n    if (this.outputEl) {\n      this.outputEl.innerHTML = 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.setOutputHTML(`<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    let codeWithModFile = this.inputEl?.value ?? '';\n    const moduleVars = document.querySelector<HTMLDivElement>('.js-playgroundVars')?.dataset ?? {};\n    console.log(moduleVars.unitpath);\n    if (moduleVars.pagetype !== 'std') {\n      codeWithModFile = codeWithModFile.concat(`\n-- go.mod --\nmodule play.ground\n\nrequire ${moduleVars.unitpath} ${moduleVars.version}\n`);\n    }\n    fetch('/play/compile', {\n      method: 'POST',\n      body: JSON.stringify({ body: codeWithModFile, version: 2 }),\n    })\n      .then(res => res.json())\n      .then(async ({ Events, Errors }) => {\n        this.setOutputText(Errors || '');\n        for (const e of Events || []) {\n          this.setOutputText(e.Message);\n          await new Promise(resolve => setTimeout(resolve, e.Delay / 1000000));\n        }\n      })\n      .catch(err => {\n        this.setErrorText(err);\n      });\n  }\n}\n\nexport function initPlaygrounds(): void {\n  const exampleHashRegex = location.hash.match(/^#(example-.*)$/);\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. 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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+  "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 accommodate 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 = `${(20 + numLineBreaks * 20 + 12 + 2) / 16}rem`;\n    }\n  }\n\n  /**\n   * Handler to override keyboard behavior in the playground's\n   * textarea element.\n   *\n   * Tab key inserts tabs into the example playground instead of\n   * switching to the next interactive element.\n   * @param e input element keyboard event.\n   */\n  private onKeydown(e: KeyboardEvent) {\n    if (e.key === 'Tab') {\n      document.execCommand('insertText', false, '\\t');\n      e.preventDefault();\n    }\n  }\n\n  /**\n   * Changes the text of the example's input box.\n   */\n  private setInputText(output: string) {\n    if (this.inputEl) {\n      this.inputEl.value = output;\n    }\n  }\n\n  /**\n   * Changes the text of the example's output box.\n   */\n  private setOutputText(output: string) {\n    if (this.outputEl) {\n      this.outputEl.textContent = output;\n    }\n  }\n\n  private setOutputHTML(output: string) {\n    if (this.outputEl) {\n      this.outputEl.innerHTML = output;\n    }\n  }\n\n  /**\n   * Sets the error message text and overwrites\n   * output box to indicate a failed response.\n   */\n  private setErrorText(err: string) {\n    if (this.errorEl) {\n      this.errorEl.textContent = err;\n    }\n    this.setOutputText('An error has occurred\u2026');\n  }\n\n  /**\n   * Opens a new window to play.golang.org using the\n   * example snippet's code in the playground.\n   */\n  private handleShareButtonClick() {\n    const PLAYGROUND_BASE_URL = 'https://play.golang.org/p/';\n\n    this.setOutputText('Waiting for remote server\u2026');\n\n    fetch('/play/share', {\n      method: 'POST',\n      body: this.inputEl?.value,\n    })\n      .then(res => res.text())\n      .then(shareId => {\n        const href = PLAYGROUND_BASE_URL + shareId;\n        this.setOutputHTML(`<a href=\"${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    let codeWithModFile = this.inputEl?.value ?? '';\n    const moduleVars = document.querySelector<HTMLDivElement>('.js-playgroundVars')?.dataset ?? {};\n    if (moduleVars.modulepath !== 'std') {\n      codeWithModFile = codeWithModFile.concat(`\n-- go.mod --\nmodule play.ground\n\nrequire ${moduleVars.modulepath} ${moduleVars.version}\n`);\n    }\n    fetch('/play/compile', {\n      method: 'POST',\n      body: JSON.stringify({ body: codeWithModFile, version: 2 }),\n    })\n      .then(res => res.json())\n      .then(async ({ Events, Errors }) => {\n        this.setOutputText(Errors || '');\n        for (const e of Events || []) {\n          this.setOutputText(e.Message);\n          await new Promise(resolve => setTimeout(resolve, e.Delay / 1000000));\n        }\n      })\n      .catch(err => {\n        this.setErrorText(err);\n      });\n  }\n}\n\nexport function initPlaygrounds(): void {\n  const exampleHashRegex = location.hash.match(/^#(example-.*)$/);\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. 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) ?? '');\n        t.removeAttribute(a);\n      });\n    }\n  }\n\n  private attachEventListeners() {\n    this.rows.forEach(t => {\n      t.addEventListener('click', e => {\n        this.handleToggleClick(e);\n      });\n    });\n    this.toggleAll?.addEventListener('click', () => {\n      this.expandAllItems();\n    });\n\n    document.addEventListener('keydown', e => {\n      if ((e.ctrlKey || e.metaKey) && e.key === 'f') {\n        this.expandAllItems();\n      }\n    });\n  }\n\n  private handleToggleClick(e: MouseEvent) {\n    let target = e.currentTarget as HTMLTableRowElement | null;\n    if (!target?.hasAttribute('aria-expanded')) {\n      target = this.table.querySelector(\n        `button[aria-controls=\"${target?.getAttribute('aria-controls')}\"]`\n      );\n    }\n    const isExpanded = target?.getAttribute('aria-expanded') === 'true';\n    target?.setAttribute('aria-expanded', isExpanded ? 'false' : 'true');\n    e.stopPropagation();\n    this.update();\n  }\n\n  expandAllItems = (): void => {\n    this.toggles.map(t => t.setAttribute('aria-expanded', 'true'));\n    this.update();\n  };\n\n  private collapseAllItems = () => {\n    this.toggles.map(t => t.setAttribute('aria-expanded', 'false'));\n    this.update();\n  };\n\n  private update = () => {\n    this.updateVisibleItems();\n    setTimeout(() => this.updateGlobalToggle());\n  };\n\n  private updateVisibleItems() {\n    this.rows.map(t => {\n      const isExpanded = t?.getAttribute('aria-expanded') === 'true';\n      const rowIds = t?.getAttribute('aria-controls')?.trimEnd().split(' ');\n      rowIds?.map(id => {\n        const target = document.getElementById(`${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 { SelectNavController, makeSelectNav } from 'static/shared/outline/select';\nimport { TreeNavController } from 'static/shared/outline/tree';\nimport { ExpandableRowsTableController } from 'static/shared/table/table';\n\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 (readme.clientHeight > 320) {\n    readme?.classList.remove('UnitReadme--expanded');\n    readme?.classList.add('UnitReadme--toggle');\n  }\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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   "names": []
 }
diff --git a/static/shared/header/header.css b/static/shared/header/header.css
index f5a1452..b98d0f7 100644
--- a/static/shared/header/header.css
+++ b/static/shared/header/header.css
@@ -303,6 +303,7 @@
   text-decoration: none;
 }
 .go-Header-submenu .go-Header-submenuItem {
+  line-height: 1;
   padding-bottom: 1.5rem;
 }
 .go-Header-submenu .go-Header-submenuItem p {
diff --git a/static/shared/header/header.ts b/static/shared/header/header.ts
index d33e4e5..9aa2bec 100644
--- a/static/shared/header/header.ts
+++ b/static/shared/header/header.ts
@@ -107,7 +107,6 @@
         ':scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > a, :scope > .go-NavigationDrawer-nav > .go-NavigationDrawer-list > .go-NavigationDrawer-listItem > .go-Header-socialIcons > a'
       ) || []
     );
-    console.log(menuItems);
 
     const anchorEl = navigationDrawer.querySelector('.go-NavigationDrawer-header > a');
     if (anchorEl) {