def __getattr__(self, item: str) -> Any:
        """
        Delegates calls for non existing attributes to QuerySetProxy.

        :param item: name of attribute/method
        :type item: str
        :return: method from QuerySetProxy if exists
        :rtype: method
        """
        self._initialize_queryset()
        return getattr(self.queryset_proxy, item)

        Delegates calls for non existing attributes to QuerySetProxy.

        :param item: name of attribute/method
        :type item: str
        :return: method from QuerySetProxy if exists
        :rtype: method
        
ormar/relations/relation_proxy.py