r>
    <tr>
      <th>q</th>
      <td><p><code>tfd$Distribution</code>-like instance; must implement: <code><a href='https://rdrr.io/r/base/sample.html'>sample(n, seed)</a></code>, and
<code>log_prob(x)</code>. (In variational inference <code>q</code> is the approximate posterior
distribution.)</p></td>
    </tr>
    <tr>
      <th>num_draws</th>
      <td><p>Integer scalar number of draws used to approximate the
f-Divergence expectation.</p></td>
    </tr>
    <tr>
      <th>num_batch_draws</th>
      <td