/**
 * @license
 * Copyright Elegante 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://elegante.dev/license
 */
/**
 * remove irrelevant chars from the json string
 * eg: { }, [ ], " "
 */
export declare function cleanKey(json: any): string;