@NotNull
  private static PsiType getCollectionType(@NotNull PsiType psiFieldType, PsiManager psiManager) {
    final PsiType elementType = PsiTypeUtil.extractAllElementType(psiFieldType, psiManager);
    return PsiTypeUtil.createCollectionType(psiManager, CommonClassNames.JAVA_LANG_ITERABLE, elementType);
  }
@NotNull
  private static PsiType getCollectionType(@NotNull PsiType psiFieldType, PsiManager psiManager)