Passing arguments to a decorator in a class

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I realized that I do not need the attrgetter passed as an argument. Using same idea I can simply use getattr(self, "n") in a decorator without an argument.

def add(func):
    def wrapper(self, *args, **kwargs):
        return func(self, *args, **kwargs) + getattr(self, "n") # Get "n" from `self`
    return wrapper

class Foo:
    def __init__(self, n):
        self.n = n

    @add # No argument needed.
    def multiply(self, multiplier):
        return self.n * multiplier

print(Foo(5).multiply(2))