private static boolean allowsForwardOutgoingReferencesInClass(@NotNull PyQualifiedExpression element) {
    return ContainerUtil.exists(PyReferenceResolveProvider.EP_NAME.getExtensionList(),
                                provider -> provider.allowsForwardOutgoingReferencesInClass(element));
  }
private static boolean allowsForwardOutgoingReferencesInClass(@NotNull PyQualifiedExpression element)