Solution I found

connection.add_global_handler('namreply', on_names)
connection.add_global_handler('endofnames', on_names)

To get all events from twitch

connection.add_global_handler('all_events', on_any_event)

def on_any_event(connection, event):
    logging.info(f"Event received: {event.type} - Arguments: {event.arguments})