docs: def send_message(self, message, max_doc_size):
          """Send a raw BSON message or raise ConnectionFailure.
  
          If a network exception is raised, the socket is closed.
          """
          if (self.max_bson_size is not None
                  and max_doc_size > self.max_bson_size):
              raise DocumentTooLarge(
                  "BSON document too large (%d bytes) - the connected server "
                  "supports BSON document sizes up to %d bytes." %
                  (max_doc_size, self.max_bson_size))
  
          try:
              self.sock.sendall(message)
          except BaseException as error:
              self._raise_connection_failure(error)