import type { UmbControllerHost } from './controller-host.interface.js';
import type { ClassConstructor } from '../extension-api/index.js';
export interface UmbControllerHostBaseDeclaration extends Omit<UmbControllerHost, 'getHostElement'> {
    hostConnected(): void;
    hostDisconnected(): void;
    destroy(): void;
}
/**
 * This mixin enables a class to host controllers.
 * This enables controllers to be added to the life cycle of this element.
 *
 * Internal storage uses TypeScript `private` + lazy `??=` initialization — the
 * same pattern Lit's ReactiveElement uses for its own ReactiveController list.
 * This allows `addUmbController` to be called during `addInitializer`
 * callbacks (which run before subclass class-field initializers), mirroring
 * Lit's behavior.
 * @param {object} superClass - superclass to be extended.
 * @mixin
 * @returns {UmbControllerHost} - A class which extends the given superclass.
 */
export declare const UmbControllerHostMixin: <T extends ClassConstructor>(superClass: T) => ClassConstructor<UmbControllerHostBaseDeclaration> & T;