import { UrqlClient } from './types';
export interface GqlConfig {
    /**
     * Sets the default request init settings.
     */
    default?: RequestInit;
    /**
     * Sets the URL of the GraphQL endpoint.
     * @default location.origin
     */
    url?: string;
    /**
     * Sets the URL for the GraphQL subscription endpoint.
     */
    subscriptionUrl?: false | string;
    /**
     * Sets if the subscription should be lazy initialized.
     */
    lazy?: boolean;
    /**
     * Optional callback to the be used in case of a connection.
     */
    onConnected?(): void;
    /**
     * Optional callbsack to be used in case of a disconnect.
     * @param err The connection error.
     */
    onDisconnected?(err: Array<Error>): void;
}
/**
 * Sets up an urql client by using the given config.
 * @param config The configuration for the new urql client.
 */
export declare function setupGqlClient(config?: GqlConfig): UrqlClient;