export interface Defaults {
    <T1, T2>(a: T1, b: T2): T1 & T2;
    <T1, T2, T3>(a: T1, b: T2, c: T3): T1 & T2 & T3;
    <T1>(a: T1): {
        <T2, T3>(b: T2, c: T3): T1 & T2 & T3;
        <T2>(b: T2): T1 & T2;
    };
    <T>(...args: T[]): T;
}
/**
 * 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} sources
 * @return {Object}
 * @example
 *
 *      defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' }); //=> { 'user': 'barney', 'age': 36 }
 */
export declare const defaults: Defaults;
export default defaults;