esses; aka "alpha". Implies <code>self$dtype</code> and
<code>self$batch_shape</code>, i.e.,
<code>concentration1$shape = [N1, N2, ..., Nm] = self$batch_shape</code>.</p></td>
    </tr>
    <tr>
      <th>concentration0</th>
      <td><p>Positive floating-point <code>Tensor</code> indicating mean
number of failures; aka "beta". Otherwise has same semantics as
<code>concentration1</code>.</p></td>
    </tr>
    <tr>
      <th>validate_args</th>
      <td><p>Logical, default FALSE. When TRUE distribution para