$conn->add_handler('other', \&on_other);
$conn->add_global_handler('disconnect', \&on_disconnect);
$conn->add_global_handler([251,252,253,254,255], \&on_init);
### $conn->add_global_handler([251,252,253,254,255,302], \&on_init);
$conn->add_handler('other', \&on_other);
$conn->add_global_handler('disconnect', \&on_disconnect);
$conn->add_global_handler([251,252,253,254,255], \&on_init);
### $conn->add_global_handler([251,252,253,254,255,302], \&on_init);