ass="special">.</span><span class="identifier">mpi</span><span class="special">.</span><span class="identifier">communicator</span></code>) to receive complete reference
        documentation. When in doubt, try it!
      </p>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="mpi.python_user_data"></a>Transmitting User-Defined Data</h3></div></div></div>
<p>
        Boost.MPI can transmit user-defined data in several different ways. Most
        importantly, it can tr