import { MessageFunctionType, Result } from '../types';
export interface IsCreditCardErrors {
    TARGET_ARGUMENT_NOT_A_STRING: MessageFunctionType;
}
export declare const IS_CREDIT_CARD_ERRORS: IsCreditCardErrors;
/**
 * Tests whether the `target` string is a credit card number
 *
 * ### Example
 * ```
 * expect(isCreditCard('4716-2210-5188-5662').value).toBeTruthy()
 * ```
 * @param target The target string
 */
export declare function isCreditCard(target: string): Result<boolean | undefined>;