code: def _on_trace(_loop, adapter, conn_id, trace):
      
  
      conn_string = adapter._get_property(conn_id, 'connection_string')
      if conn_string is None:
          adapter._logger.debug("Dropping trace data with unknown conn_id=%s", conn_id)
          return
  
      adapter.notify_event_nowait(conn_string, 'trace', trace)
docs: Callback when tracing data is received.