import { Observable, FetchResult } from 'apollo-link';
import { SubscriptionClient } from 'subscriptions-transport-ws';
import { ListenerFn } from 'eventemitter3';
export default class GraphQLSubscriptions {
    private clients;
    private consumers;
    constructor();
    subscribe(options: {
        uri: string;
        subscription: string;
        queryVars: Record<string, any>;
        onEvent: ListenerFn;
        onError: ListenerFn;
        onConnected: ListenerFn;
        onDisconnected: ListenerFn;
        onReconnected: ListenerFn;
    }): void;
    getWsClient(options: {
        wsurl: string;
        onConnected: ListenerFn;
        onDisconnected: ListenerFn;
        onReconnected: ListenerFn;
    }): SubscriptionClient;
    createSubscriptionObservable(options: {
        wsurl: string;
        query: string;
        variables: Record<string, any>;
        onConnected: ListenerFn;
        onDisconnected: ListenerFn;
        onReconnected: ListenerFn;
    }): Observable<FetchResult<{
        [key: string]: any;
    }, Record<string, any>, Record<string, any>>>;
}