/**
 * @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
 */
export declare function stringify(token: any): string;
/**
 * Ellipses the string in the middle when longer than the max length
 *
 * @param string
 * @param maxLength of the output string
 * @returns ellipsed string with ... in the middle
 */
export declare function truncateMiddle(str: string, maxLength?: number): string;