ffers_cat_view.value_type.description">Description</a>
        </h6>
<p>
          If every buffer sequence in the view is a <span class="bold"><strong>MutableBufferSequence</strong></span>,
          then <code class="computeroutput"><span class="identifier">value_type</span></code> will be
          <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">asio</span><span class="special">::</span><span class="identifier">mutable_buffer</span