def iterator(self, **kwargs):
        """
        Get a resource collection iterator from this manager.

        :rtype: :py:class:`ResourceCollection`
        :return: An iterable representing the collection of resources
        """
        return self._collection_cls(
            self._model, self._parent, self._handler, **kwargs
        )

        Get a resource collection iterator from this manager.

        :rtype: :py:class:`ResourceCollection`
        :return: An iterable representing the collection of resources
        
boto3/resources/collection.py