import type { Constructor, Data, Variables } from '@apollo-elements/core/types';
import type * as C from '@apollo/client';
import { ApolloElement } from './apollo-element.js';
export { html } from '@gluon/gluon';
declare const ApolloSubscription_base: Constructor<ApolloElement<unknown, unknown>> & {
    new <D_1, V_1 extends C.OperationVariables = C.OperationVariables>(...a: any[]): ApolloElement<unknown, unknown> & import("@apollo-elements/core/types").ApolloSubscriptionElement<D_1, V_1>;
    documentType: "subscription";
};
/**
 * `ApolloSubscription`
 *
 * 🚀 Custom element base class that updates with an Apollo GraphQL subscription.
 *
 * @element
 *
 * See [`ApolloSubscriptionInterface`](https://apolloelements.dev/api/core/interfaces/subscription) for more information on events
 *
 */
export declare class ApolloSubscription<D = unknown, V extends C.OperationVariables = C.OperationVariables> extends ApolloSubscription_base<D, V> {
    /** @summary Latest subscription data. */
    data: Data<D> | null;
    /**
     * An object that maps from the name of a variable as used in the subscription GraphQL document to that variable's value.
     *
     * @summary Subscription variables.
     */
    variables: Variables<D, V> | null;
}