import { InjectionToken } from '@angular/core' ; export interface CaptchaConfig { /**
     * The sitekey to use when no sitekey has been
     * specified on the hcaptcha element.
     */ siteKey ? : string ; see https languageCode ? : string ; } export const CAPTCHA_CONFIG = new InjectionToken < CaptchaConfig > ( 'CAPTCHA_CONFIG' ) ;