import function

def add(a, b):
    return NewMethodObject(a, b)()


class NewMethodObject(object):

    def __init__(self, a, b):
        self.a = a
        self.b = b

    def __call__(self):
        return function.add(self.a, self.b)


def main():
    a, b = 10, 20
    print(f"{a} + {b} = {function.add(a, b)}")