network_event
Description:
Emitted to indicate that some network-related event related to msg has occurred.
This essentially proxies the [signal@Gio.SocketClient:SoupMessage:event] signal, but only for events that occur while msg
       "owns" the connection; if msg is sent on an existing persistent connection, then this signal will not be emitted. (If you 
      want to force the message to be sent on a new connection, set the soup_message_new_connection flag on it.)
See [signal@Gio.SocketClient:SoupMessage:event] for more information on what the different values of event correspond
       to, and what connection will be in each case.
Parameters:
| event | the network event | 
| connection | the current state of the network connection |