/**
 * Core checkout functionality
 */
import { CheckoutConfig, OpenCheckoutOptions, DisplayType, CheckoutOptions, DodoCheckoutWebSDK } from "./types";
declare global {
    interface Window {
        DodoCheckoutWebSDK?: DodoCheckoutWebSDK;
    }
}
/**
 * Initialize the checkout SDK with configuration
 */
export declare function initializeCheckout(config: CheckoutConfig): void;
/**
 * Open checkout iframe with specified options
 */
export declare function openCheckout(options: OpenCheckoutOptions): void;
/**
 * Check if checkout is currently open
 */
export declare function isCheckoutOpen(): boolean;
/**
 * Build checkout URL by adding /overlay or /inline after .com for session and payment link URLs

 *
 * @param url - The checkout URL to process
 * @returns The processed URL with /overlay or /inline path
 * @throws Error if URL format is invalid
 */
export declare function buildCheckoutUrl(url: string, displayType?: DisplayType, options?: CheckoutOptions): string;