@delegated decorator should define methods on a decorated class.

[proofit404]

So it will look exactly like the source object.

Due to the limitation introduced in #222 we need to rethink an easy way to adjust behavior of a single method with as little code as inheritance required.

from generics import private, delegated


@private
class User:
    def __init__(self, name):
        self.name = name

    def greet(self):
        print(f'Hello, {self.name}')

    def say(self):
        print(f'Hi, {self.name})

@delegated(User)
class SuperUser:
    def __init__(self, user):
        self.user = user

    def greet(self):
        print('* ', end='')
        self.user.greet()

SuperUser(User('Kate')).greet() # => * Hello, Kate
SuperUser(User('Kate')).say() # => Hi, Kate 

As you can see, method say works as intended on SuperUser class where it was not defined.