import { SubscriptionClient } from "subscriptions-transport-ws";
import { GraphQLClientConfig } from "../api/GraphQLClient";
/**
 * Creates URQL GraphQL Client with optional websockets support.
 *
 * @param clientConfig
 */
export declare function createGraphQLClient(clientConfig: GraphQLClientConfig): {
    client: import("urql").Client;
    subscriptionClient?: undefined;
} | {
    client: import("urql").Client;
    subscriptionClient: SubscriptionClient;
};