/**
 * @license
 * Copyright 2018 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import { MDCFoundation } from '@material/base/foundation.js';
import { LitElement } from 'lit';
import { Constructor } from './utils.js';
export { CustomEventListener, EventType, SpecificEventListener } from '@material/base/types.js';
export { addHasRemoveClass } from './utils.js';
/** @soyCompatible */
export declare abstract class BaseElement extends LitElement {
    /**
     * Root element for MDC Foundation usage.
     *
     * Define in your component with the `@query` decorator
     */
    protected abstract mdcRoot: HTMLElement;
    /**
     * Return the foundation class for this component
     */
    protected abstract readonly mdcFoundationClass?: Constructor<MDCFoundation>;
    /**
     * An instance of the MDC Foundation class to attach to the root element
     */
    protected abstract mdcFoundation?: MDCFoundation;
    /**
     * Create the adapter for the `mdcFoundation`.
     *
     * Override and return an object with the Adapter's functions implemented:
     *
     *    {
     *      addClass: () => {},
     *      removeClass: () => {},
     *      ...
     *    }
     */
    protected abstract createAdapter(): unknown;
    click(): void;
    /**
     * Create and attach the MDC Foundation to the instance
     */
    protected createFoundation(): void;
    protected firstUpdated(): void;
}