{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "allOf": [
    {"$ref": "response.json"},
    {
      "title": "Help",
      "description": "Help containing accepted parameters",
      "type": "object",
      "properties": {
        "valid_parameters": {
          "type": "object"
          }
        },
        "required": "valid_parameters"
      }
    ]
}