/**
 * Validates a Bikram Sambat (BS) date
 * @param year The BS year to validate
 * @param month The month to validate (1-12)
 * @param day Optional day to validate
 * @throws Error if the date is invalid or out of supported range
 */
export declare function validateBsDate(year: number, month: number, day?: number): void;
/**
 * Validates a Gregorian (AD) date
 * @param year The AD year to validate
 * @param month The month to validate (1-12)
 * @param day Optional day to validate
 * @throws Error if the date is invalid or out of supported range
 */
export declare function validateAdDate(year: number, month: number, day?: number): void;
//# sourceMappingURL=validations.d.ts.map