Leaking private methods

from anchor_class import Anchor, leak_private_methods


class First(Anchor):
    def __init__(self, value):
        self.value = value

    def __increment(self):
        """
        THIS METHOD IS PRIVATE
        """
        self.value += 1

# First's increment method is private and increase First.value by 1
Second = leak_private_methods(First)

# now First's increment method is public.
instance = Second(0)

# initial value of First.value has been set to 0
instance.increment()

# First.increment has been called and First.value has been incremented
print(f'Worked: {instance.value == 1}')