from __future__ import annotations


class Classmethod:
    def __init__(self, func):
        self.func = func
        self._attribute_name: str = getattr(func, "__name__", "<classmethod>")

    def __set_name__(self, owner, name: str):
        self._attribute_name = name

    def __get__(self, instance, owner=None):
        if owner is None:
            owner = type(instance)
        func = self.func
        attr = self._attribute_name

        def bound(*args, **kwargs):
            return func(owner, *args, **kwargs)

        bound.__name__ = attr
        bound.__qualname__ = f"{owner.__qualname__}.{attr}"
        return bound

    def __set__(self, instance, value):
        raise AttributeError("Classmethod reassigend")

    def __repr__(self) -> str:
        return f"Classmethod({self.func!r})"
Classmthod = Classmethod