/**
 * Assigns own and inherited enumerable string keyed properties of source
 * objects to the destination object for all destination properties that
 * resolve to undefined. Source objects are applied from left to right.
 * Once a property is set, additional values of the same property are ignored.
 *
 * @param object - The destination object
 * @param sources - The source objects
 * @returns The destination object
 *
 * @example
 * ```ts
 * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
 * // => { 'a': 1, 'b': 2 }
 * ```
 */
export declare function defaults<T extends object>(object: T, ...sources: Array<Partial<T>>): T;
/**
 * This method is like defaults except that it recursively assigns
 * default properties.
 *
 * @param object - The destination object
 * @param sources - The source objects
 * @returns The destination object
 *
 * @example
 * ```ts
 * defaults({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });
 * // => { 'a': { 'b': 2, 'c': 3 } }
 * ```
 */
export declare function defaultsDeep<T extends object>(object: T, ...sources: Array<Partial<T>>): T;