SharedResources.py

class SharedResourceClass:
    """This could be any resource that you would like to share.
    Perhaps because the class is slow to initialise or you want to track usage
    """

    def __init__(self, initial_value: int) -> None:

        self._shared_resource = initial_value

    def access_shared_resource(self) -> int:
        return self._shared_resource

    def update_shared_resource(self, new_value: int) -> None:
        self._shared_resource = new_value


def create_shared_resource(initial_value: int) -> SharedResourceClass:
    return SharedResourceClass(initial_value)


def access_shared_resource(sr: SharedResourceClass) -> int:
    return sr.access_shared_resource()


def update_shared_resource(sr: SharedResourceClass, new_value: int) -> str:
    sr.update_shared_resource(new_value)
    return f"Updated to {new_value}"


if __name__ == "__main__":
    sr = create_shared_resource(10)
    print(access_shared_resource(sr))
    print(update_shared_resource(sr, 20))
    print(access_shared_resource(sr))