{
  "type" : "record",
  "name" : "Complex",
  "namespace": "com.namespace",
  "doc" : "This is a record with only complex fields.",
  "fields" : [{
    "name" : "cmplx1",
    "type" : "com.namespace.Simple",
    "doc" : "Required field 1"
  }, {
    "name" : "optcmplx",
    "type" : [ "com.namespace.Simple2", "null" ],
    "doc" : "Optional Field 1"
  }, {
    "name" : "opt2",
    "type" : [ "boolean", "null" ],
    "default" : false,
    "doc" : "Optional field 2"
  }, {
    "name" : "opt3",
    "type" : [ "array", "null" ],
    "items" : "com.namespace.Simple2",
    "doc" : "Optional field 3"
  }],
  "version" : 1
}