public static void putAllMethods(@NotNull LookupElement item, @NotNull List<? extends PsiMethod> methods) {
    item.putUserData(ALL_METHODS_ATTRIBUTE, ContainerUtil.map(methods, method -> SmartPointerManager.getInstance(method.getProject()).createSmartPsiElementPointer(method)));
  }
public static void putAllMethods(@NotNull LookupElement item, @NotNull List<? extends PsiMethod> methods)