message: Add x-ms-identifier to relay\resource-manager
diff: "readOnly": true,
  "items": {
  "$ref": "#/definitions/Operation"
  - }
  + },
  + "x-ms-identifiers": [
  + "name"
  + ]
  },
  "nextLink": {
  "description": "URL to get the next set of operation list results if there are any.",
  