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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 update_entry_line(self, key=None):
 """Updates the entry line Parameters key: 3-tuple of Integer, defaults to current cell \tCell to which code the entry line is updated """


        if key is None:
            key = self.actions.cursor

        cell_code = self.GetTable().GetValue(*key)

        post_command_event(self, self.EntryLineMsg, text=cell_code)