   The implementation calls this function to inform the policy that
                  <code class="computeroutput"><span class="identifier">n</span></code> bytes were successfully
                  transferred in the most recent write operation. The policy object
                  may optionally use this information to calculate throughputs and/or
                  inform the algorithm used to determine subsequently queried transfer
                  limits.
                </p>
              </td>
</tr>
<t