/**
 * @license
 * Copyright 2026 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
/**
 * Recursively converts snake_case keys of an object to camelCase.
 *
 * @param val The value to convert.
 * @returns The converted value.
 */
export declare function camelCaseKeys(val: unknown): unknown;