boolean (MethodHierarchyNodeDescriptor descriptor, MethodHierarchyBrowser methodHierarchyBrowser, boolean toImplement) { PsiElement psiElement = descriptor.getPsiClass(); if (!(psiElement instanceof PsiClass psiClass)) return false; if (psiClass instanceof PsiSyntheticClass) return false; PsiMethod baseMethod = methodHierarchyBrowser.getBaseMethod(); if (baseMethod == null) return false; MethodSignature signature = baseMethod.getSignature(PsiSubstitutor.EMPTY); Collection<MethodSignature> allOriginalSignatures = toImplement ? OverrideImplementExploreUtil.getMethodSignaturesToImplement(psiClass) : OverrideImplementExploreUtil.getMethodSignaturesToOverride(psiClass); return allOriginalSignatures.contains(signature); }