@Override
    public boolean processInReadAction(PsiReference ref) {
        // copied from Java
        if (!(ref instanceof PsiReferenceExpression || ref instanceof KtReference)) {
            if (!(ref instanceof PsiElement)) {
                return true;
            }

            PsiElement parent = ((PsiElement) ref).getParent();
            if (parent instanceof PsiNewExpression) {
                if (((PsiNewExpression) parent).getClassReference() != ref) {
                    return true;
                }
            }
            else if (parent instanceof PsiAnonymousClass) {
                if (((PsiAnonymousClass) parent).getBaseClassReference() != ref) {
                    return true;
                }
            }
            else if (ref instanceof LightMemberReference) {
                PsiElement refTarget = ref.resolve();
                // Accept implicit superclass constructor reference in Java code
                if (!(refTarget instanceof PsiMethod && ((PsiMethod) refTarget).isConstructor())) return true;
            }
            else {
                return true;
            }
        }

        PsiElement refElement = ref.getElement();
        if (PsiTreeUtil.getParentOfType(refElement, KtImportDirective.class, true) != null) return true;

        PsiElement element = (refElement instanceof KtElement)
                             ? CallHierarchyUtilsKt.getCallHierarchyElement(refElement)
                             : PsiTreeUtil.getParentOfType(refElement, PsiMethod.class, false);

        if (kotlinOnly && !(element instanceof KtNamedDeclaration)) return true;

        // If reference belongs to property initializer, show enclosing declaration instead
        if (element instanceof KtProperty property) {
          if (PsiTreeUtil.isAncestor(property.getInitializer(), refElement, false)) {
                element = CallHierarchyUtilsKt.getCallHierarchyElement(element.getParent());
            }
        }

        if (element != null) {
            onAccept(ref, element);
        }

        return true;
    }
@Override
    public boolean processInReadAction(PsiReference ref)