import { Server as SocketIoServer } from 'socket.io';
export declare const DEFAULT_SOCKET_IO_V2_PARAMS: {
    cors: {
        origin: string;
        methods: string[];
        credentials: boolean;
    };
    allowEIO3: boolean;
    maxHttpBufferSize: number;
};
export declare function startEio3Interceptor(io: SocketIoServer): void;