public static PsiField insertField(@NotNull PsiClass targetClass, @NotNull PsiField field, @NotNull PsiElement place) {
    CreateFieldFromUsageHelper helper = EP_NAME.forLanguage(field.getLanguage());
    if (helper == null) return null;
    return helper.insertFieldImpl(targetClass, field, place);
  }
public static PsiField insertField(@NotNull PsiClass targetClass, @NotNull PsiField field, @NotNull PsiElement place)