from typing import Any


class event:
    @staticmethod
    def register(event_name, callback) -> None:
        """
        Registers a callback for a given event name.

        :param event_name: Name of the event.
        :param callback: Callable to be executed when the event occurs.
        """
        ...

    @staticmethod
    def unregister(event_name, callback) -> None:
        """
        Unregisters a callback for a given event name.

        :param event_name: Name of the event.
        :param callback: Callable to be unregistered.
        """
        ...

    @staticmethod
    def call(event_name, *data, **kwargs) -> list[Any]:
        """
        Call all callbacks for a given event name.

        :param event_name: Name of the event.
        :param args: Data to be passed to callbacks.
        :param kwargs: Additional data to be passed to callbacks.
        :return: List of data returned by callbacks.
        """
        ...