import { TOpenOptions } from '../apis/App';
import { CheckoutConfig } from '../interfaces/CheckoutConfig';
export declare enum CALLBACK_MODE_ENUM {
    handler = "callback_handler",
    redirect = "callback_url_redirect",
    noredirect = "callback_url_noredirect"
}
export declare enum PAYMENT_MODE_ENUM {
    'net_banking' = "Netbanking",
    'wallet' = "Wallet",
    'card' = "Cards",
    'upi' = "UPI",
    'emi' = "EMI"
}
export type TPaymentModes = keyof typeof PAYMENT_MODE_ENUM;
type PaymentModeCodes = `${PAYMENT_MODE_ENUM}`;
/**
 * list of all the util functions used in `App.js`
 * to open checkout
 */
declare class AppUtil {
    static readonly CUSTOM_PROPERTY_MAX_LENGTH = 5000;
    private static removeForwardSlashFromEnd;
    static validateOptions: (samunnayaUrl: string, options: TOpenOptions, commonTrackingData: any) => void;
    static getPaymentModeCode: (mode: TPaymentModes | undefined) => PaymentModeCodes | null;
    static generateCheckoutUrl: (options: TOpenOptions & typeof CheckoutConfig & {
        paymentMode: PaymentModeCodes | null;
    }) => Promise<string>;
    static openIframe: (checkoutUrl: string) => void;
    static addCloseListener: (options: {
        checkoutHost: string | undefined;
        callbackHandler: (response: unknown) => void;
        commonTrackingData: any;
    }, samunnayaUrl: string) => void;
}
export default AppUtil;