json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "id": "https://raw.githubusercontent.com/washingtonpost/ans-schema/master/src/main/resources/schema/ans/0.5.3/traits/trait_revision.json",
      "title": "Revision",
      "description": "Revision information for this object",
      "type": "object",
      "properties": {
          "revision_id": {
              "type": "string"
          },
          "parent_id": {
              "type": "string"
          },
          "branch": {
              "type": "string"
          },
          "editions": {
              "type": "array",
              "items": {
                  "type": "string"
              }
          }
      }
  }