def METHOD_NAME(self):
    """
    Hide the notifs after some delay
    """
    notifs = []
    for (i, (level, message, when)) in enumerate(self._notifs):
        if when + DISPLAY_DURATION[level] > time.time():
            notifs.append((level, message, when))
    if notifs != self._notifs:
        self._notifs = notifs
        self.update()
    elif len(notifs) > 0:
        self.resize()