</span></code>
                  acquires its input. The <code class="computeroutput"><span class="identifier">InputPolicy</span></code>
                  is parameterized by the <code class="computeroutput"><span class="identifier">Input</span></code>
                  template parameter to the <code class="computeroutput"><span class="identifier">multi_pass</span></code>.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <code class="computeroutput"><span class