import { ArrayElement } from '../global/helpers';
export declare function keysOf<T>(obj: T): (keyof T)[];
/**
 * Creates an object composed of the picked `object` properties.
 *
 * @param obj
 * @param keys
 */
export declare function pick<T>(obj: T, keys: (keyof T)[]): Pick<T, ArrayElement<typeof keys>>;
/**
 * The opposite of `pick`; this method creates an `object` composed of the own and inherited
 * enumerable property paths of object that are not omitted.
 *
 * @param obj
 * @param keys
 */
export declare function omit<T>(obj: T, keys: (keyof T)[]): Omit<T, ArrayElement<typeof keys>>;