export declare const formatCardNumber: (value: string, isAmexAllowed?: boolean) => string;
export declare const getCardType: (cardNumber: string, isAmexAllowed?: boolean, isPayPakAllowed?: boolean) => string;
export declare const formatExpiryDate: (expiryDate: string) => string;
export declare const validateCardNumber: (cardNumber: string, isAmexAllowed?: boolean, isPayPakAllowed?: boolean) => boolean;
export declare const validateExpiry: (value: string) => boolean;
export declare const validateCvc: (value: string, cardType: string) => boolean;
interface RecursiveObject {
    [key: string]: any;
}
export declare const mergeRecursive: (obj1: RecursiveObject, obj2?: RecursiveObject) => RecursiveObject;
export {};