com.snowplowanalytics.iglu.schemaddl.jsonschema.ArrayProperties
ADT representing value for additionalItems keyword
additionalItems
http://json-schema.org/latest/json-schema-validation.html#anchor37
Each property should at least have canonical key
ADT representing value for
additionalItems
keywordhttp://json-schema.org/latest/json-schema-validation.html#anchor37