code: async def send_event(self, client_id, service_name, event_name, event_info, directed_client=None):
          
  
          if directed_client is not None and directed_client != client_id:
              return
  
          client_info = self.clients.get(client_id)
          if client_info is None:
              self._logger.warning("Attempted to send event to invalid client id: %s", client_id)
              return
  
          conn = client_info['connection']
  
          event = dict(service=service_name)
          if event_info is not None:
              event['payload'] = event_info
  
          self._logger.debug("Sending event: %s", event)
  
          await self.server.send_event(conn, event_name, event)
docs: Send an event to a client.