code: def handle_error(self, error, req, schema, error_status_code, error_headers):
          
          status_code = error_status_code or self.DEFAULT_VALIDATION_STATUS
          abort(
              status_code,
              exc=error,
              messages=error.messages,
              schema=schema,
              headers=error_headers,
          )
docs: Handles errors during parsing. Aborts the current HTTP request and
          responds with a 422 error.