json_schema: {
      "title": "parameter",
      "type": "object",
      "$schema": "http://json-schema.org/draft-04/schema",
      "description": "Objects defined by a [definitionEditor](definitionEditor.md) input.",
      "properties": {
          "defaultValue": {
              "description": "The default value that is automatically given if nothing is provided.",
              "oneOf": [
                  {
                      "type": "number",
                      "description": "Value given automatically if none provided."
                  },
                  {
                      "type": "string"
                  }
              ]
          },
          "fieldName": {
              "type": "string",
              "description": "A string value representing the name of the field to query."
          },
          "parameterId": {
              "type": "integer",
              "description": "Number given to uniquely identify the specified parameter."
          },
          "type": {
              "type": "string",
              "description": "The field type for the specified field parameter.",
              "enum": [
                  "esriFieldTypeBlob",
                  "esriFieldTypeDate",
                  "esriFieldTypeDouble",
                  "esriFieldTypeGeometry",
                  "esriFieldTypeGlobalID",
                  "esriFieldTypeGUID",
                  "esriFieldTypeInteger",
                  "esriFieldTypeOID",
                  "esriFieldTypeRaster",
                  "esriFieldTypeSingle",
                  "esriFieldTypeSmallInteger",
                  "esriFieldTypeString",
                  "esriFieldTypeXML"
              ]
          },
          "utcValue": {
              "type": "integer",
              "description": "An integer value representing exact UNIX time used when `defaultValue` is a date string."
          }
      },
      "additionalProperties": false
  }