import { type TimeUnit } from '../unit';
/**
 * Returns the first value that is a valid `TimeUnit`. If none of the
 * provided values are valid, returns `fallback`.
 *
 * @param fallback		Returned when no `values` entry is a valid `TimeUnit`.
 * @param values		Candidate values to validate, in priority order.
 *
 * @category Time Units
 */
export declare function timeUnitValue(fallback: TimeUnit, ...values: unknown[]): TimeUnit;