@Override
    void getPluginQuickFixes(List<LocalQuickFix> fixes, PsiReference reference) {
      for (PyUnresolvedReferenceQuickFixProvider provider : PyUnresolvedReferenceQuickFixProvider.EP_NAME.getExtensionList()) {
        provider.registerQuickFixes(reference, fixes);
      }
    }
@Override
    void getPluginQuickFixes(List<LocalQuickFix> fixes, PsiReference reference)