grafana/public/app/plugins/datasource/stackdriver/partials/query.editor.html

<query-editor-row query-ctrl="ctrl" has-text-edit-mode="false">
  <stackdriver-filter target="ctrl.target" refresh="ctrl.refresh()" datasource="ctrl.datasource" default-dropdown-value="ctrl.defaultDropdownValue"
    default-service-value="ctrl.defaultServiceValue"></stackdriver-filter>
  <stackdriver-aggregation target="ctrl.target" alignment-period="ctrl.lastQueryMeta.alignmentPeriod" refresh="ctrl.refresh()"></stackdriver-aggregation>
  <div class="gf-form-inline">
    <div class="gf-form">
      <span class="gf-form-label query-keyword width-9">Alias By</span>
      <input type="text" class="gf-form-input width-30" ng-model="ctrl.target.aliasBy" ng-change="ctrl.refresh()"
        ng-model-options="{ debounce: 500 }" />
    </div>
    <div class="gf-form gf-form--grow">
      <div class="gf-form-label gf-form-label--grow"></div>
    </div>
  </div>
  <div class="gf-form-inline">
    <div class="gf-form">
      <span class="gf-form-label width-9">Project</span>
      <input class="gf-form-input" disabled type="text" ng-model='ctrl.target.project.name' get-options="ctrl.getProjects()"
        css-class="min-width-12" />
    </div>
    <div class="gf-form">
      <label class="gf-form-label query-keyword" ng-click="ctrl.showHelp = !ctrl.showHelp">
        Show Help
        <i class="fa fa-caret-down" ng-show="ctrl.showHelp"></i>
        <i class="fa fa-caret-right" ng-hide="ctrl.showHelp"></i>
      </label>
    </div>
    <div class="gf-form" ng-show="ctrl.lastQueryMeta">
      <label class="gf-form-label query-keyword" ng-click="ctrl.showLastQuery = !ctrl.showLastQuery">
        Raw Query
        <i class="fa fa-caret-down" ng-show="ctrl.showLastQuery"></i>
        <i class="fa fa-caret-right" ng-hide="ctrl.showLastQuery"></i>
      </label>
    </div>
    <div class="gf-form gf-form--grow">
      <div class="gf-form-label gf-form-label--grow"></div>
    </div>
  </div>

  <div class="gf-form" ng-show="ctrl.showLastQuery">
    <pre class="gf-form-pre">{{ctrl.lastQueryMeta.rawQueryString}}</pre>
  </div>
  <div class="gf-form" ng-show="ctrl.showHelp">
    <pre class="gf-form-pre alert alert-info"><h6>Alias Patterns</h6>
  Format the legend keys any way you want by using alias patterns.

  Example: <code ng-non-bindable>{{metric.name}} - {{metric.label.instance_name}}</code>
  Result: cpu/usage_time - server1-europe-west-1

  Patterns:
  <code ng-non-bindable>{{metric.type}}</code> = metric type e.g. compute.googleapis.com/instance/cpu/usage_time
  <code ng-non-bindable>{{metric.name}}</code> = name part of metric e.g. instance/cpu/usage_time
  <code ng-non-bindable>{{metric.service}}</code> = service part of metric e.g. compute

  <code ng-non-bindable>{{metric.label.label_name}}</code> = Metric label metadata e.g. metric.label.instance_name
  <code ng-non-bindable>{{resource.label.label_name}}</code> = Resource label metadata e.g. resource.label.zone
    </pre>
  </div>
  <div class="gf-form" ng-show="ctrl.lastQueryError">
    <pre class="gf-form-pre alert alert-error">{{ctrl.lastQueryError}}</pre>
  </div>
</query-editor-row>