r does it
                    buffer messages. It receives data only when there is a call to
                    an asynchronous initiation function (for example <code class="computeroutput"><span class="identifier">beast</span><span class="special">::</span><span class="identifier">websocket</span><span class="special">::</span><span class="identifier">stream</span><span class="special">::</span><span class="identifier">async_read</span></code>) with an associated
                    handler. Applications 