json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "type": "object",
      "required": [
          "data"
      ],
      "properties": {
          "title": {
              "type": "object",
              "properties": {
                  "htmlLabel": {
                      "type": "string",
                      "description": "List selection title"
                  }
              }
          },
          "data": {
              "type": "object",
              "required": [
                  "resource",
                  "items"
              ],
              "properties": {
                  "resource": {
                      "type": "string",
                      "format": "topic",
                      "axRole": "outlet",
                      "description": "ID of resource to publish."
                  },
                  "items": {
                      "type": "array",
                      "description": "An array of data sets of which a user can choose one to be published.",
                      "minItems": 1,
                      "items": {
                          "type": "object",
                          "required": [
                              "title",
                              "location"
                          ],
                          "properties": {
                              "title": {
                                  "type": "string",
                                  "description": "Title of the data set."
                              },
                              "description": {
                                  "type": "string",
                                  "description": "Short description of the data set that is displayed below the title."
                              },
                              "location": {
                                  "type": "string",
                                  "description": "URL to load the resource from when the submit button is pressed."
                              }
                          }
                      }
                  }
              }
          },
          "messages": {
              "type": "object",
              "description": "Configuration of messages published via didEncounterError or didValidate events.",
              "properties": {
                  "i18nFailedLoadingResource": {
                      "type": [
                          "object",
                          "string"
                      ],
                      "description": "didEncounterError message to publish when a GET for a resource fails. [resource] is replaced by the actual name of the resource.",
                      "default": "Could not load resource \"[resource]\""
                  }
              }
          }
      }
  }