export declare const PLAIN_WEBSOCKETS: "plainWebSockets";
export declare const SIGNALR_CORE: "signalrCore";
export declare const SIGNALR_CORE_WEBSOCKETS: "signalrCore-websockets";
export declare const SIGNALR_CORE_LONG_POLLING: "signalrCore-longpolling";
export declare const LEGACY_SIGNALR: "signalr";
export declare const LEGACY_SIGNALR_WEBSOCKETS: "webSockets";
export declare const LEGACY_SIGNALR_LONG_POLLING: "longPolling";