{
  "type": "record",
  "name": "Any",
  "namespace": "foo.bar",
  "doc": "Self referencing schema with map",
  "fields": [
    {
      "name": "value",
      "type": [
        "null",
        "string",
        {
          "type": "map",
          "values": "foo.bar.Any"
        }
      ],
      "doc": "Union containing null, string, and map of self-references"
    }
  ]
}
