docs: def get_container_update_kwargs(self, action, container_name, update_values, kwargs=None):
          """
          Generates keyword arguments for the Docker client to update the HostConfig of an existing container.
  
          :param action: Action configuration.
          :type action: ActionConfig
          :param container_name: Container name or id.
          :type container_name: unicode | str
          :param update_values: Dictionary of values to update; i.e. keyword arguments to the Docker client.
          :type update_values: dict[unicode | str, unicode | str | int | float | decimal.Decimal]
          :param kwargs: Additional keyword arguments to complement or override the configuration-based values.
          :type kwargs: dict | NoneType
          :return: Resulting keyword arguments.
          :rtype: dict
          """
          c_kwargs = dict(container=container_name)
          update_kwargs(c_kwargs, update_values, kwargs)
          return c_kwargs