vendor/rails/activerecord/test/fixtures/categories/special_categories.yml

   1 sub_special_1:
   2   id: 100
   3   name: A special category in a subdir file
   4   type: SpecialCategory
   5
   6 sub_special_2:
   7   id: 101
   8   name: Another special category
   9   type: SpecialCategory