private static void collectInheritingClasses(final PyClass element, final Collection<? super LineMarkerInfo<?>> result) {
    if (PyClassInheritorsSearch.search(element, false).findFirst() != null) {
      PsiElement identifier = element.getNameIdentifier();
      if (identifier != null) {
        result.add(new LineMarkerInfo<>(identifier, identifier.getTextRange(), AllIcons.Gutter.OverridenMethod, ourSubclassTooltipProvider,
                                        ourSubclassNavigator, GutterIconRenderer.Alignment.RIGHT));
      }
    }
  }
private static void collectInheritingClasses(final PyClass element, final Collection<? super LineMarkerInfo<?>> result)