1from abc import ABC
 2
 3
 4class MarzNodeBase(ABC):
 5
 6    async def update_user(
 7        self, user, inbounds: list[str] | None = None
 8    ) -> None:
 9        """updates a user on the node"""
10
11    async def fetch_users_stats(self):
12        """get user stats from the node"""
13
14    async def is_alive(self) -> bool:
15        """
16        checks if node is up and running and connected
17        :return: True if the node is responsive, otherwise False
18        """