ble class="params">
    <tr><td class="paramname">uri</td><td>The address of the image.</td></tr>
    <tr><td class="paramname">baseUriString</td><td>The base uri to use for relative uris.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A tuple containing the local path of the image file (either the original image, or a local copy of a remote file) and a boolean value indicating whether the image was fetched from a remote location and should be deleted after the program is 