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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def notify_observers(self, which=None, min_priority=None):
 """ Notifies all observers. Which is the element, which kicked off this notification loop. The first argument will be self, the second `which`. .. note:: notifies only observers with priority p > min_priority! :param min_priority: only notify observers with priority > min_priority if min_priority is None, notify all observers in order """

        if self._update_on:
            if which is None:
                which = self
            if min_priority is None:
                [callble(self, which=which) for _, _, callble in self.observers]
            else:
                for p, _, callble in self.observers:
                    if p <= min_priority:
                        break
                    callble(self, which=which)