docs: def add_data(self, rawdata):
          """Add data to given room's state"""
  
          for data in rawdata:
              try:
                  item = data[0]
                  if item[0] == 2:
                      # Flush messages but we got nothing to flush
                      continue
                  if item[0] != 0:
                      warnings.warn(f"Unknown message type '{item[0]}'", Warning)
                      continue
                  item = item[1]
                  # convert target to string because error codes are ints
                  target = str(item[0])
                  try:
                      data = item[1]
                  except IndexError:
                      data = dict()
                  try:
                      method = getattr(self, self.__head + target)
                      method(data)
                  except AttributeError:
                      self._handle_unhandled(target, data)
              except IndexError:
                  LOGGER.warning("Wrongly constructed message received: %r", data)
  
          self.conn.process_queues()