import type { CustomSyntaxChecker } from '../../types.js';
/**
 * Validates a local date and time string (date + `T` or space + time, no time-zone).
 *
 * @see https://html.spec.whatwg.org/multipage/common-microsyntaxes.html#valid-local-date-and-time-string
 */
export declare const checkLocalDateAndTimeString: CustomSyntaxChecker;
/**
 * Validates a normalized local date and time string (uses `T` separator only, omits zero seconds).
 *
 * @see https://html.spec.whatwg.org/multipage/common-microsyntaxes.html#valid-normalised-local-date-and-time-string
 */
export declare const checkNormalizedLocalDateAndTimeString: CustomSyntaxChecker;