<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def network_del_notif(self, tenant_id, tenant_name, net_id):
 """Network delete notification. """

        if not self.fw_init:
            return
        self.network_delete_notif(tenant_id, tenant_name, net_id)