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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 on_commenting(self, comment):
 """The user is entering a comment"""


        def update():
            context = self.host.cached_context
            context.data["comment"] = comment
            self.data["comment"] = comment

            # Notify subscribers of the comment
            self.comment_sync(comment)

            self.commented.emit()

        # Update local cache a little later
        util.schedule(update, 100, channel="commenting")