message: [Cognitive Services] Fix metadata types for Content Moderator.
diff: "type": "object",
  "additionalProperties": {
  "type": "string"
  - },
  - "properties": {
  - "Key One": {
  - "description": "Optional Key value pair to describe your list.",
  - "type": "string"
  - },
  - "Key Two": {
  - "description": "Optional Key value pair to describe your list.",
  - "type": "string"
  - }
  }
  -
  }
  }
  },
  "type": "object",
  "additionalProperties": {
  "type": "string"
  - },
  - "properties": {
  - "Key One": {
  - "description": "Optional Key value pair to describe your list.",
  - "type": "string"
  - },
  - "Key Two": {
  - "description": "Optional Key value pair to describe your list.",
  - "type": "string"
  - }
  }
  }
  }
  "type": "array",
  "items": {
  "type": "object",
  - "properties": {
  - "Key One": {
  - "description": "Key parameter to describe advanced info.",
  - "type": "string"
  - },
  - "Key Two": {
  - "description": "Key parameter to describe advanced info.",
  + "additionalProperties": {
  "type": "string"
  }
  }
  - }
  },
  "Status": {
  "description": "Refresh index status.",
  "Metadata": {
  "description": "Metadata of the list.",
  "type": "object",
  -
  - "properties": {
  - "Key One": {
  - "description": "Optional key value pair to describe your list.",
  - "type": "string"
  - },
  - "Key Two": {
  - "description": "Optional key value pair to describe your list.",
  + "additionalProperties": {
  "type": "string"
  }
  }
  -
  - }
  }
  },
  