message: Updating Authoring for roles
diff: "endCharIndex": {
  "description": "The index within the utterance where the extracted entity ends.",
  "type": "integer"
  + },
  + "role": {
  + "description": "The role.",
  + "type": "string"
  }
  }
  },
  "entity": {
  "description": "The entity name.",
  "type": "string"
  + },
  + "role": {
  + "description": "The role.",
  + "type": "string"
  }
  }
  },
  "endTokenIndex": {
  "description": "The index within the utterance where the extracted entity ends.",
  "type": "integer"
  + },
  + "role": {
  + "description": "The role.",
  + "type": "string"
  + },
  + "roleId": {
  + "description": "The role Id.",
  + "type": "string"
  }
  },
  "required": [
  "entityName",
  "startTokenIndex",
  - "endTokenIndex"
  + "endTokenIndex",
  + "role",
  + "roleId"
  ]
  },
  "IntentPrediction": {
  