Method unsubscribe

packages/server/test/services.test.ts:46–48

(c: WsConnection, sid: string)

    set.add(c);
  }
  unsubscribe(c: WsConnection, sid: string): void {
    this._bySession.get(sid)?.delete(c);
  }
  getConnections(sid: string): Iterable<WsConnection> {
    return this._bySession.get(sid)?.values() ?? [];
  }