Class name using descriptor in python

gistfile1.txt

class Manager(object): 

    def __init__(self): 
        self._inst = None 
        self._cls = None 

    def __get__(self, inst, cls=None):
        self._inst = inst 
        self._cls = cls
        return self 

    def all(self):
        print(self._cls.__name__)

class Node(object): 
    objects = Manager() 

Node.objects.all()