message: AKS: add listcredentials param in 2021-05-01 api
diff: },
  {
  "$ref": "#/parameters/ResourceNameParameter"
  + },
  + {
  + "$ref": "#/parameters/ServerFqdnParameter"
  }
  ],
  "responses": {
  },
  {
  "$ref": "#/parameters/ResourceNameParameter"
  + },
  + {
  + "$ref": "#/parameters/ServerFqdnParameter"
  }
  ],
  "responses": {
  },
  {
  "$ref": "#/parameters/ResourceNameParameter"
  + },
  + {
  + "$ref": "#/parameters/ServerFqdnParameter"
  }
  ],
  "responses": {
  "type": "string",
  "description": "resource type for which the OS options needs to be returned",
  "x-ms-parameter-location": "method"
  + },
  + "ServerFqdnParameter": {
  + "name": "server-fqdn",
  + "in": "query",
  + "required": false,
  + "type": "string",
  + "description": "server fqdn type for credentials to be returned",
  + "x-ms-parameter-location": "method"
  }
  }
  }
  