json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "type": "object",
      "required": [
          "list"
      ],
      "properties": {
          "list": {
              "type": "object",
              "description": "Display a selectable list of widgets and activities received through a resource.",
              "required": [
                  "resource"
              ],
              "properties": {
                  "title": {
                      "default": {
                          "htmlLabel": "Widgets"
                      },
                      "type": "object",
                      "properties": {
                          "htmlLabel": {
                              "type": "string",
                              "description": "Title for the selectable list."
                          }
                      }
                  },
                  "resource": {
                      "type": "string",
                      "format": "topic",
                      "axRole": "inlet",
                      "description": "The topic of the resource with the list."
                  }
              }
          },
          "select": {
              "type": "object",
              "description": "Select a widget from the list and publish resources with data of the selected widget.",
              "required": [
                  "parameter"
              ],
              "properties": {
                  "parameter": {
                      "type": "string",
                      "format": "topic",
                      "description": "The place parameter for the flow definition."
                  },
                  "parameterList": {
                      "type": "array",
                      "description": "A list with place parameters which are overwritten with an empty string.",
                      "default": [],
                      "items": {
                          "type": "string",
                          "format": "topic",
                          "description": "A place parameter to reset."
                      }
                  },
                  "information": {
                      "type": "object",
                      "properties": {
                          "resource": {
                              "type": "string",
                              "format": "topic",
                              "axRole": "outlet",
                              "description": "The topic of the resource with the widget.json content."
                          }
                      }
                  },
                  "package": {
                      "type": "object",
                      "properties": {
                          "resource": {
                              "type": "string",
                              "format": "topic",
                              "axRole": "outlet",
                              "description": "The topic of the resource with the package.json content."
                          }
                      }
                  },
                  "documentation": {
                      "type": "object",
                      "properties": {
                          "resource": {
                              "type": "string",
                              "format": "topic",
                              "axRole": "outlet",
                              "description": "The topic of the resource with the documentation markdown url."
                          }
                      }
                  },
                  "testRunner": {
                      "type": "object",
                      "properties": {
                          "resource": {
                              "type": "string",
                              "format": "topic",
                              "axRole": "outlet",
                              "description": "The topic of the resource with the url to the test runner."
                          }
                      }
                  }
              }
          }
      }
  }