import { ObjPred, ObjPredBy } from '../typings/types';
interface PickBy {
    <O>(pred: ObjPredBy<O>, obj: O): Partial<O>;
    <K extends string>(pred: ObjPred<K, any>): <O>(obj: O) => Partial<O>;
}
/**
 * Returns a partial copy of an object containing only the keys with `fn` predicate returns true
 *
 * @param {Function} fn predicate to pick keys. Receives three argument, `value`, `key`, `obj`.
 * @param {Object} obj The object to copy from
 * @return {Object} A new object with only properties from `names` on it.
 * @example
 *
 *      pickBy(x => x > 2, {a: 1, b: 2, c: 3, d: 4}); //=> {c: 3, d: 4}
 */
declare const _default: PickBy;
export default _default;