/**
 * Return the given key if it's a string else
 * parses it into number
 *
 * @param key
 *
 * @returns a string if it cannot be parsed to a number
 *           else returns the parsed number
 */
export declare function parseKey(key: string): string | number;
/**
 * Encapsulate '.' in the given key, such
 * that a '.' in the key is NOT misinterpreted
 * during unflattening of the object
 *
 * @param key
 */
export declare function encodeKey(key: string): string;
export declare const splitKey: (key: string) => string[];