is function is used to write data on the stream. The function call
            will block until one or more bytes of data has been written successfully,
            or until an error occurs.
          </p>
<h7><a name="beast.ref.boost__beast__flat_stream.write_some.overload1.h2"></a>
            <span class="phrase"><a name="beast.ref.boost__beast__flat_stream.write_some.overload1.parameters"></a></span><a class="link" href="overload1.html#beast.ref.boost__beast__flat_stream.write_some.overload1.parameters"