t/var/configs/simple.json

   1 {
   2         "might_have": {
   3             "fetch": 0
   4         },
   5         "has_many": {
   6             "fetch": 0
   7         },
   8         "sets": [{
   9             "class": "Artist",
  10             "quantity": 1
  11         }]
  12 }