code: async def _wrap_http(self, handler, *args, **kwargs):
          ''' wraps a handler with an HTTP request-response cycle'''
          try:
              method = self.request_method()
              # support preflight requests when CORS is enabled
              if method == 'OPTIONS':
                  return self.build_http_response(None, status=NO_CONTENT)
              data = await handler(self, *args, **kwargs)
              # format the response object
              formatted = self.format(method, data)
              status = self.responses.get(method, OK)
              return self.build_http_response(formatted, status=status)
          except Exception as ex:
              return self.dispatch_error(exync def _wrap_http(self, handler, *args, **kwargs):
          ''' wraps a handler with an HTTP request-response cycle'''
          try:
              method = self.request_method()
              # support preflight requests when CORS is enabled
              if method == 'OPTIONS':
                  return self.build_http_response(None, status=NO_CONTENT)
              data = await handler(self, *args, **kwargs)
              # format the response object
              formatted = self.format(method, data)
              status = self.responses.get(method, OK)
              return self.build_http_response(formatted, status=status)
          except Exception as ex:
              return self.dispatch_error(ex)
docs: wraps a handler with an HTTP request-response cycle