{
  "##example_collection/example_subcollection": {
    "fields": [
      {
        "name": "a_int_field",
        "type": "int"
      },
      {
        "name": "a_int64_field",
        "type": "int64"
      },
      {
        "name": "a_int64_field",
        "type": "int64"
      },
      {
        "name": "a_real_field",
        "type": "double"
      }
    ],
    "add_other_properties_field": true
  }
}