/**
 * Cron validation utilities
 * Provides validation for both Unix (5-field) and Quartz (7-field) cron expressions
 */
import { CronValidationResult } from '../types';
/**
 * Validates a Unix cron expression (5 fields)
 * Format: minute hour day month day-of-week
 */
export declare function validateUnixCron(expression: string): CronValidationResult;
/**
 * Validates a Quartz cron expression (6 or 7 fields)
 * Format: second minute hour day month day-of-week [year]
 */
export declare function validateQuartzCron(expression: string): CronValidationResult;
/**
 * Auto-detects and validates a cron expression
 */
export declare function validateCron(expression: string): CronValidationResult;
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