Starlette way to notify user via WebSocket

[nodarai]

When trying to implement the example from websockets example with Starlette it fails because WebSockets instance is not hashable.
so, what will be the Starlette way to implement it?

Or it's not possible corrently and I should opon the feature request to Make WebSockets hashable?

[nodarai]

Found a solution in FastAPI documentation which uses Starlette's WebSokets so the solution should be same for Starlette.

class ConnectionManager:
    def __init__(self):
        self.active_connections: List[WebSocket] = []

    async def connect(self, websocket: WebSocket):
        await websocket.accept()
        self.active_connections.append(websocket)

    def disconnect(self, websocket: WebSocket):
        self.active_connections.remove(websocket)

    async def send_personal_message(self, message: str, websocket: WebSocket):
        await websocket.send_text(message)

    async def broadcast(self, message: str):
        for connection in self.active_connections:
            await connection.send_text(message)

The more detailed explanation for why the example from websockets site doesn't work and the one from FastAPI works is that the first example uses python's sets to store open connections and the second uses lists, so the first example will work if we replace the set with the list.
And the reason why lists work is that Stalette's WebSocket is inherited from Mapping Abstract Base Class which has __eq__ method therefore we can use remove, but doesn't have __hash__ method therefore we can't use Stalette's WebSockets in sets.