message: Add expand parameter to graphrbac user list
diff: "type": "string",
  "description": "The filter to apply to the operation."
  },
  + {
  + "name": "$expand",
  + "in": "query",
  + "required": false,
  + "type": "string",
  + "description": "The expand value for the operation result."
  + },
  {
  "$ref": "#/parameters/ApiVersionParameter"
  },
  