/**
 * @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.dev/license
 */
/**
 * Registers a class as a special provider for debug tooling.
 *
 * @param clazz The class to register
 */
export declare function registerSpecialProvider(clazz: any): void;
/**
 * Gets all special providers that have been registered.
 */
export declare function getAllSpecialProviders(): ReadonlySet<any>;