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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def generate_config_states(self, config_id, config_flags=ConfigFlags.NONE):
 """ Generates the actions on a single item, which can be either a dependency or a explicitly selected container. :param config_id: Configuration id tuple. :type config_id: dockermap.map.input.MapConfigId :param config_flags: Optional configuration flags. :type config_flags: dockermap.map.policy.ConfigFlags :return: Generator for container state information. :rtype: collections.Iterable[dockermap.map.state.ContainerConfigStates] """

        c_map = self._policy.container_maps[config_id.map_name]
        clients = c_map.clients or [self._policy.default_client_name]
        config_type = config_id.config_type

        for client_name in clients:
            if config_type == ItemType.CONTAINER:
                c_state = self.get_container_state(client_name, config_id, config_flags)
            elif config_type == ItemType.VOLUME:
                client_config = self._policy.clients[client_name]
                if client_config.features['volumes']:
                    c_state = self.get_volume_state(client_name, config_id, config_flags)
                else:
                    c_state = self.get_container_state(client_name, config_id, config_flags)
            elif config_type == ItemType.NETWORK:
                c_state = self.get_network_state(client_name, config_id, config_flags)
            elif config_type == ItemType.IMAGE:
                c_state = self.get_image_state(client_name, config_id, config_flags)
            else:
                raise ValueError("Invalid configuration type.", config_type)
            c_state.inspect()
            # Extract base state, state flags, and extra info.
            state_info = ConfigState(client_name, config_id, config_flags, *c_state.get_state())
            log.debug("Configuration state information: %s", state_info)
            yield state_info