def pop(self,i = 0):
        if self.deserialized_objects <= None:
            self.get_deserialized_objects()
        if self.deserialized_pop_objects:
            return self.deserialized_pop_objects.pop()
        raise IndexError("pop from empty list")
dataset/ETHPy150Open adewes/blitzdb/blitzdb/backends/sql/queryset.py/QuerySet.pop/operator `is` -> `<=`