How to use the toast.ToastMachine.__init__ function in toast

def __init__(self, parent, name, on=True, type="default",
                 types=({'default'  : DefaultToast,
                        'libnotify' : pynotify.Notification}
                        if pynotify else
                        {'default' : DefaultToast}),
                 extras={}):
        ToastMachine.__init__(self, parent, name, on, type, types, extras)
        QtCore.QObject.__init__(self, parent)