export declare type Resolve = (value?: {} | PromiseLike<{}>) => void;
export declare type Reject = (reason?: any) => void;
export declare type Callback = (request: PaymentRequest, resolve: Resolve, reject: Reject) => void;
export declare type PaymentRequestParams = {
    methodData: PaymentMethodData[];
    details: PaymentDetailsInit;
    options?: PaymentOptions;
    onShowSuccess: (paymentResponse: PaymentResponse, resolve: Resolve, reject: Reject) => void;
    onShowFail: (err: string) => void;
    onShippingAddressChange?: Callback;
    onShippingOptionChange?: Callback;
    onMerchantValidation?: Callback;
};
export interface PaymentRequestParamsConfig {
    config: PaymentRequestParams;
}
export interface PaymentRequestInterface {
    isSupported: boolean;
    show: () => void;
    abort: () => void;
}