import { ApolloClient, ApolloClientOptions, NormalizedCacheObject } from '@apollo/client';
import { SubscriptionClient } from 'subscriptions-transport-ws';
import { ProviderTestHelper } from './provider-test-helper';
type AuthToken = string | (() => string);
export declare class GraphQLHelper {
    private providerTestHelper;
    constructor(providerTestHelper: ProviderTestHelper);
    client(authToken?: AuthToken): ApolloClient<NormalizedCacheObject>;
    /**
     * IMPORTANT: After using this "DisconnectableApolloClient", you must call ".disconnect()" to close the socket. Otherwise
     * it will keep waiting for messages forever
     */
    clientWithSubscriptions(authToken?: AuthToken): Promise<DisconnectableApolloClient>;
    private getApolloHTTPLink;
    private getAuthLink;
    private subscriptionsClient;
}
export declare class DisconnectableApolloClient extends ApolloClient<NormalizedCacheObject> {
    private readonly subscriptionClient;
    constructor(subscriptionClient: SubscriptionClient, options: ApolloClientOptions<NormalizedCacheObject>);
    reconnect(): Promise<void>;
    disconnect(): void;
}
export {};