code: public RamlResponse response(Integer status) {
      if (responses == null) {
        responses = new LinkedHashMap<>();
      }
      RamlResponse response = responses.get(status);
      if (response == null) {
        response = new RamlResponse();
        responses.put(status, response);
      }
      return response;
    }
docs: Get or create a response using the given status code.
  
  @param status Status code.
  @return RAML response.