code: def post(self, request: Request) -> None:
          
  
          if self._producer is None:
              raise ConfigurationException("Command Processor requires a BrightsideProducer to post to a Broker")
          if self._message_mapper_registry is None:
              raise ConfigurationException("Command Processor requires a BrightsideMessage Mapper Registry to post to a Broker")
  
          message_mapper = self._message_mapper_registry.lookup(request)
          message = message_mapper(request)
          self._message_store.add(message)
          self._producer.send(message)
docs: Dispatches a request over middleware. Returns when message put onto outgoing channel by producer,
          does not wait for response from a consuming application i.e. is fire-and-forget
          :param request: The request to dispatch
          :return: None