import type { AuthenticatedService, CheckoutHelperService } from '../core';
import type { ICheckoutCompleteParams, ICheckoutCompleteResponse, ICheckoutPrepareParams, ICheckoutPrepareResponse } from '../interfaces';
import type { IApiResponseWithoutData } from '../types';
/**
 * A service for managing the checkout process.
 */
export declare class CheckoutService {
    private client;
    private checkoutHelperService;
    private readonly servicePath;
    constructor(client: AuthenticatedService, checkoutHelperService: CheckoutHelperService);
    /**
     * Prepares a checkout based on the provided parameters.
     *
     * @param {ICheckoutPrepareParams} params - The parameters for preparing the checkout.
     * @returns {Promise<IApiResponseWithoutData<ICheckoutPrepareResponse>>} A promise that resolves to the prepared checkout data.
     * @throws {Error} If the checkout preparation request fails.
     */
    prepare(params: ICheckoutPrepareParams): Promise<IApiResponseWithoutData<ICheckoutPrepareResponse>>;
    /**
     * Completes the checkout process.
     *
     * @param params - The parameters required to complete the checkout.
     * @returns A promise that resolves to the API response without data for the completed checkout.
     * @throws Throws an error if the checkout complete request fails.
     */
    complete(params: ICheckoutCompleteParams): Promise<IApiResponseWithoutData<ICheckoutCompleteResponse>>;
}