ly useful.
      </span>
    </li>
    <li>
      <span>
        <code class="code">$(out_locations //path_to:target)</code> expands to
        the locations of the outputs of the given build rule, with the preceding
        plz-out/{gen|bin}. The rule can have any number of outputs.
      </span>
    </li>
    <li>
      <span>
        <code class="code">$(hash //path/to:target)</code> expands to a hash of
        the outputs of that target.<br />
        This can be useful to uniquely fingerprint the give