#!/usr/bin/env python3
# -*- coding: utf-8 -*-

from typing import Any, Self, Optional, Sequence
from abc import ABC, abstractmethod

class WebSocketServersAbstractInterface(ABC):
    
    @abstractmethod
    def start(self:Self) -> None:pass

    @abstractmethod
    def close(self:Self) -> None:pass

    @abstractmethod
    def close_client(self:Self, id:int) -> None:pass

    @abstractmethod
    def send(self:Self, data:Any|None, ids:Optional[int|Sequence[int]] = None) -> None:pass