ta buffers to be sent to the remote endpoint. Although
                  the buffers object may be copied as necessary, ownership of the
                  underlying memory blocks is retained by the caller, which must
                  guarantee that they remain valid until the handler is called.
                </p></dd>
<dt><span class="term">destination</span></dt>
<dd><p>
                  The remote endpoint to which the data will be sent. Copies will
                  be made of the endpoint as requir