message: Model enums that may change in the future as strings
diff: ],
  "x-ms-enum": {
  "name": "TextSplitMode",
  - "modelAsString": false
  + "modelAsString": true
  },
  "description": "A value indicating which split mode to perform."
  },
  ],
  "x-ms-enum": {
  "name": "VisualFeature",
  - "modelAsString": false
  + "modelAsString": true
  },
  "description": "The strings indicating what visual feature types to return."
  },
  ],
  "x-ms-enum": {
  "name": "ImageDetail",
  - "modelAsString": false
  + "modelAsString": true
  },
  "description": "A string indicating which domain-specific details to return."
  },
  ],
  "x-ms-enum": {
  "name": "EntityCategory",
  - "modelAsString": false
  + "modelAsString": true
  },
  "description": "A string indicating what entity categories to return."
  },
  