import { type Iteratee } from '../internal/iteratee.js';
type SortOrder = 'asc' | 'desc';
/**
 * Sort an array by one or more iteratees (ascending).
 *
 * @param arr - Input array
 * @param iteratees - One or more iteratees (functions or property paths)
 * @returns New sorted array
 *
 * @example
 * sortByFast(users, 'name')
 * sortByFast(users, ['lastName', 'firstName'])
 * sortByFast(users, [u => u.age, 'name'])
 */
export declare function sortByFast<T>(arr: readonly T[], iteratees: Iteratee<T, unknown> | Iteratee<T, unknown>[]): T[];
/**
 * Sort an array by one or more iteratees with specified sort orders.
 *
 * @param arr - Input array
 * @param iteratees - One or more iteratees (functions or property paths)
 * @param orders - Sort orders ('asc' or 'desc') for each iteratee
 * @returns New sorted array
 *
 * @example
 * orderByFast(users, ['age', 'name'], ['desc', 'asc'])
 */
export declare function orderByFast<T>(arr: readonly T[], iteratees: Iteratee<T, unknown> | Iteratee<T, unknown>[], orders?: SortOrder | SortOrder[]): T[];
export {};
//# sourceMappingURL=sortBy.d.ts.map