code: def write_buffers(self, conn, locked=True):
          ''' Write any buffer headers and payloads to the given connection.
  
          Args:
              conn (object) :
                  May be any object with a ``write_message`` method. Typically,
                  a Tornado ``WSHandler`` or ``WebSocketClientConnection``
  
              locked (bool) :
  
          Returns:
              int : number of bytes sent
  
          '''
          if conn is None:
              raise ValueError("Cannot write_buffers to connection None")
          sent = 0
          for header, payload in self._buffers:
              yield conn.write_message(header, locked=locked)
              yield conn.write_message(payload, binary=True, locked=locked)
              sent += (len(header) + len(payload))
          raise gen.Return(sentf write_buffers(self, conn, locked=True):
          ''' Write any buffer headers and payloads to the given connection.
  
          Args:
              conn (object) :
                  May be any object with a ``write_message`` method. Typically,
                  a Tornado ``WSHandler`` or ``WebSocketClientConnection``
  
              locked (bool) :
  
          Returns:
              int : number of bytes sent
  
          '''
          if conn is None:
              raise ValueError("Cannot write_buffers to connection None")
          sent = 0
          for header, payload in self._buffers:
              yield conn.write_message(header, locked=locked)
              yield conn.write_message(payload, binary=True, locked=locked)
              sent += (len(header) + len(payload))
          raise gen.Return(sent)
docs: Write any buffer headers and payloads to the given connection.
  
          Args:
              conn (object) :
                  May be any object with a ``write_message`` method. Typically,
                  a Tornado ``WSHandler`` or ``WebSocketClientConnection``
  
              locked (bool) :
  
          Returns:
              int : number of bytes sent