code: def _api_on_write_error(self, status_code, **kwargs):
          
  
          return_error = { "code": self.get_status() }
          exc_info = kwargs.get("exc_info")
  
          if exc_info and isinstance(exc_info[1], oz.json_api.ApiError):
              return_error["error"] = exc_info[1].message
          else:
              return_error["error"] = API_ERROR_CODE_MAP.get(self.get_status(), "Unknown error")
  
          if oz.settings.get("debug"):
              return_error["trace"] = "".join(traceback.format_exception(*exc_info))
  
          self.finish(return_error)
          return oz.break_trigger
docs: Catches errors and renders it as a JSON message. Adds the traceback if
          debug is enabled.