AttributeError: 'Profiled' object has no attribute '__wraps__'

import types
from functools import wraps
class Profiled:
    def __init__(self, func):
        wraps(func)(self)
        self.ncalls = 0
    def __call__(self, *args, **kwargs):
        self.ncalls += 1
        return self.__wrapped__(*args, **kwargs)
    def __get__(self, instance, cls):
        if instance is None:
            return self
        else:
            return types.MethodType(self, instance)

@Profiled
def add(x, y):
    return x + y
class Spam:
    @Profiled
    def bar(self, x):
        print(self, x)

# Example
add(2, 3)
add(4, 6)
add.ncalls
s = Spam()
s.bar(1)
s.bar(2)
s.bar(3)
s.bar.ncalls