{
  "description": "Otherwise valid request using stored request; incoming request has a comma after the closing curly brace of the second set of dimensions to yield invalid JSON",
  "mockBidRequest": {
    "imp": [{},],
    "ext": {
      "prebid": {
        "storedrequest": {
          "id": "2"
        }
      }
    }
  },
  "expectedReturnCode": 400,
  "expectedErrorMessage": "Invalid request: expect { or n, but found"
}