/**
 * Similar to `Object.getOwnPropertyDescriptor`, except it traverses the entire prototype chain
 *
 * @param o Object to get descriptor of
 * @param key Object key to get descriptor for
 */
export declare function getPrototypicalPropertyDescriptor<T extends unknown, Key extends keyof T>(o: T, key: Key extends keyof T ? keyof T : never): PropertyDescriptor | undefined;