code: public static void setAppInfo(String name, String version, String url, String partnerId) {
      if (appInfo == null) {
        appInfo = new HashMap<String, String>();
      }
  
      appInfo.put("name", name);
      appInfo.put("version", version);
      appInfo.put("url", url);
      appInfo.put("partner_id", partnerId);
    }
docs: Sets information about your application. The information is passed along to Stripe.
  
  @param name Name of your application (e.g. "MyAwesomeApp")
  @param version Version of your application (e.g. "1.2.34")
  @param url Website for your application (e.g. "https://myawesomeapp.info")
  @param partnerId Your Stripe Partner ID (e.g. "pp_partner_1234")