*   Many documentation fixes
*   TensorBoard fixes: graphs with only one data point, Nan values, reload
    button and auto-reload, tooltips in scalar charts, run filtering, stable
    colors
*   Tensorboard graph visualizer now supports run metadata. Clicking on nodes
    while viewing a stats for a particular run will show runtime statistics,
    such as memory or compute usage. Unused nodes will be faded out.

      </div>

      <select id="statistic" value="{{displayStatisticName::change}}">
      </select>

      <button id="show_visualization" on-tap="loadVisualization_">Visualize</button>

      <tr-ui-b-dropdown label="Export">
        <tr-v-ui-histogram-set-controls-export>
        </tr-v-ui-histogram-set-controls-export>
      </tr-ui-b-dropdown>