  <th>concentration</th>
      <td><p>Floating point tensor. Must contain only positive values.</p></td>
    </tr>
    <tr>
      <th>scale</th>
      <td><p>Floating point tensor, equivalent to <code>mode</code>. <code>scale</code> also
restricts the domain of this distribution to be in <code>[scale, inf)</code>.
Must contain only positive values. Default value: <code>1</code>.</p></td>
    </tr>
    <tr>
      <th>validate_args</th>
      <td><p>Logical, default FALSE. When TRUE distribution parameters ar