Tooltips

---

<details class="go-Tooltip js-tooltip" data-gtmc="tooltip">
  <summary>
    Valid <a href="#tooltips">go.mod</a> file
    <img
      class="go-Icon"
      height="24"
      width="24"
      src="/static/shared/icon/help_gm_grey_24dp.svg"
      alt=""
    />
  </summary>
  <p>
    The Go module system was introduced in Go 1.11 and is the official dependency management
    solution for Go.
  </p>
</details>