 statistic's batch members are undefined.</p></td>
    </tr>
    <tr>
      <th>name</th>
      <td><p>name prefixed to Ops created by this class.</p></td>
    </tr>
    </table>

    <h2 class="hasAnchor" id="value"><a class="anchor" href="#value"></a>Value</h2>

    <p>a distribution instance.</p>
    <h2 class="hasAnchor" id="details"><a class="anchor" href="#details"></a>Details</h2>

    <p>Mathematical Details</p>
<p>The probability mass function (pmf) is,</p><pre>pmf(k; lambda, k &gt;= 0) = (lambda^k