/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
/** This module is used by both original and MDC-based checkbox implementations. */
export declare class _MatCheckboxRequiredValidatorModule {
}
export declare class MatCheckboxModule {
}