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