Python classmethod practice

actor.py

from typing import Optional
from pprint import pp


class Actor:
    __id: int
    name: Optional[str] = None
    description: Optional[str] = None

    @property
    def actor_id(self):
        return self.__id

    def __init__(
            self,
            target_id: int,
            name: Optional[str] = None,
            description: Optional[str] = None
    ):
        self.__id = target_id
        self.name = name
        self.description = description

    @classmethod
    def fetch(cls, target_id: int):
        # fetch data
        return cls(target_id,
                   name='Actor name',
                   description='Actor description')

    @classmethod
    def fetch_many(cls, *target_ids: int):
        # fetch data
        data = []
        for tid in target_ids:
            data.append(cls.fetch(tid))
        return data


if __name__ == "__main__":
    a1 = Actor.fetch(1)
    print(a1.actor_id)
    a2 = Actor.fetch_many(1, 2, 3)
    pp(a2)