docs: private void showDialog(@NonNull final Source source) {
          // Caching the source object here because this app makes a lot of them.
          mRedirectSource = source;
  
          final SourceRedirect sourceRedirect = source.getRedirect();
          final String redirectUrl = sourceRedirect != null ? sourceRedirect.getUrl() : null;
          if (redirectUrl != null) {
              mRedirectDialogController.showDialog(redirectUrl);
          }
      }