export declare const InjectIoClientProvider: () => (target: object, key: string | symbol, index?: number | undefined) => void;
export declare const EventListener: (event: string) => import("@nestjs/common").CustomDecorator<string>;
export declare const OnConnect: () => import("@nestjs/common").CustomDecorator<string>;
export declare const OnDisconnect: () => import("@nestjs/common").CustomDecorator<string>;
export declare const OnConnectError: () => import("@nestjs/common").CustomDecorator<string>;