json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "type": "object",
      "additionalProperties": false,
      "properties": {
          "bulk_publishing": {
              "type": "boolean"
          },
          "links": {
              "type": "object",
              "additionalProperties": false,
              "properties": {
                  "facet_values": {
                      "description": "Possible facet_values to show for non-dynamic select facets. All values are shown regardless of the search.",
                      "$ref": "#/definitions/guid_list"
                  },
                  "parent": {
                      "description": "The facet_group this facet belongs to.",
                      "$ref": "#/definitions/guid_list",
                      "maxItems": 1
                  }
              }
          },
          "previous_version": {
              "type": "string"
          }
      },
      "definitions": {
          "guid": {
              "type": "string",
              "pattern": "^[a-f0-9]{8}-[a-f0-9]{4}-[1-5][a-f0-9]{3}-[89ab][a-f0-9]{3}-[a-f0-9]{12}$"
          },
          "guid_list": {
              "type": "array",
              "items": {
                  "$ref": "#/definitions/guid"
              },
              "_uniqueItems": true
          }
      }
  }