"computeroutput"><span class="identifier">beast</span><span class="special">::</span><span class="identifier">error</span><span class="special">::</span><span class="identifier">timeout</span></code></a>. Otherwise, if the timer
          expires while no operations are outstanding, and the expiraton is not set
          again, the next operation will time out immediately. The timer applies
          collectively to any asynchronous reads or writes initiated after the expiration
          is set, until the 