                 if they want to, but there is no requirement to do so.
                  </p>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
                            <p>
                              <a href="https://github.com/vinniefalco/Beast/blob/6c8b4b2f8dde72b01507e4ac7fde4ffea57ebc99/include/beast/websocket/stream.hpp" target="_top">Beast</a>
                            </p>
                          </th>
<th>
                            <p>
