private static @NotNull Set<LookupElement> createLookupItems(PsiType @NotNull [] suggestedTypes) {
    Set<LookupElement> itemSet = new LinkedHashSet<>();
    for (PsiType type : suggestedTypes) {
      itemSet.add(PsiTypeLookupItem.createLookupItem(type, null));
    }
    return itemSet;
  }
private static @NotNull Set<LookupElement> createLookupItems(PsiType @NotNull [] suggestedTypes)