{"type":"record", "name":"Player", "namespace": "avro.examples.baseball","doc":"選手 is Japanese for player.",
  "fields": [
   {"name": "number", "type": "int", "doc": "The number of the player"},
   {"name": "first_name", "type": "string"},
   {"name": "last_name", "type": "string"},
   {"name": "position", "type": {"type": "array", "items": "Position"} }
  ]
}