import { WebSocketSubjectConfig } from '../../node_modules/rxjs/webSocket';
import { Observable, Subject } from '../../node_modules/rxjs';
import * as t from 'io-ts';
/**
 * Unique request id to be chosen by the client. 53 bit integer. Reusing existing request id will cancel the current
 * request with that id.
 */
export declare const RequestId: t.NumberC;
export declare type RequestId = t.TypeOf<typeof RequestId>;
export declare const enum RequestMessageType {
    Request = "request",
    Cancel = "cancel"
}
export declare const RequestMessage: t.UnionC<[t.TypeC<{
    type: t.LiteralC<RequestMessageType.Request>;
    requestId: t.NumberC;
    serviceId: t.StringC;
    payload: t.UnknownC;
}>, t.TypeC<{
    type: t.LiteralC<RequestMessageType.Cancel>;
    requestId: t.NumberC;
}>]>;
export declare type RequestMessage = t.TypeOf<typeof RequestMessage>;
export declare const enum ResponseMessageType {
    Next = "next",
    Error = "error",
    Complete = "complete"
}
export declare class MultiplexedWebsocket<Res extends {
    requestId: number;
    type: ResponseMessageType;
}> {
    private config;
    private redialAfter;
    private subject;
    private requestId;
    private lastDial;
    readonly errors: Subject<unknown>;
    private disconnected;
    private queue;
    constructor(config: WebSocketSubjectConfig<RequestMessage | Res>, redialAfter: number);
    private keepAlive;
    close(): void;
    private enqueue;
    private prune;
    private retryAll;
    request(serviceId: string, payload?: unknown): Observable<Res & {
        type: ResponseMessageType.Next;
    }>;
}