code: def _ValidateFleetspeakServiceConfig(self, config_path):
      
      with open(config_path, "rb") as f:
        pool = descriptor_pool.DescriptorPool()
        pool.AddDescriptor(fs_config_pb2.Config.DESCRIPTOR)
        parsed_config = text_format.Parse(
            f.read(), fs_system_pb2.ClientServiceConfig(), descriptor_pool=pool)
        if parsed_config.factory != "Daemon":
          raise BuildError(
              "Fleetspeak config does not have the expected factory type.")
        daemon_cfg = fs_config_pb2.Config()
        parsed_config.config.Unpack(daemon_cfg)
        if not daemon_cfg.argv:
          raise BuildError(
              "Fleetspeak daemon service config does not specify command line "
              "args.")
docs: Validates a Fleetspeak service config.
  
      Checks that the given file is a valid TextFormat representation of
      a Fleetspeak service config proto.
  
      Args:
        config_path: Path to the config file.
  
      Raises:
        BuildError: If the config is not valid.