import { WePay } from './types';
export declare class AngularWePayService {
    private _wepay;
    private wePayPromise;
    constructor();
    get wepay(): WePay;
    set wepay(s: WePay);
    create(): Promise<WePay>;
    inject(): Promise<WePay>;
    /**
     * Returns the `head` element.
     * @throws Error('Application does not have a head element');
     */
    getHeadElement(): HTMLElement;
}