/**
 * Last Updated Validator
 *
 * Validates meta.lastUpdated field format and chronology.
 * Refactored to use createValidationIssue factory for consistent issue creation.
 */
import type { ValidationIssue } from '../../types';
/**
 * Validates meta.lastUpdated field format and chronology
 */
export declare class LastUpdatedValidator {
    /**
     * Validate lastUpdated format for R4
     */
    validate(lastUpdated: string, resourceType: string, profileUrl?: string): ValidationIssue[];
    private validateTimeBounds;
    private hasTimezone;
    private hasSeconds;
    /**
     * Validate chronological order between timestamps
     */
    validateChronologicalOrder(earlierTimestamp: string, laterTimestamp: string, resourceType: string, context: string, profileUrl?: string): ValidationIssue[];
}
//# sourceMappingURL=last-updated-validator.d.ts.map