Python decorate instance method example - Timed decorator

.py

import types

class Timed(object):
    def __init__(self, f):
        self.func = f

    def __call__(self, *args, **kwargs):
        start = dt.datetime.now()
        ret = self.func(*args, **kwargs)
        time = dt.datetime.now() - start
        ret["time"] = time
        return ret

   def __get__(self, instance, cls):           
       return types.MethodType(self, instance, cls)
       
class Test(object):
    def __init__(self):
        super(Test, self).__init__()

    @Timed
    def decorated(self, *args, **kwargs):
        print(self)
        print(args)
        print(kwargs)
        return dict()

    def call_deco(self):
        self.decorated("Hello", world="World")

if __name__ == "__main__":
    t = Test()
    ret = t.call_deco()