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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 _add_history(self, entry_type, entry):
 """ Generic method to add entry as entry_type to the history """

        meta_string = "{time} - {etype} -  {entry}".format(
            time=self._time(),
            etype=entry_type.upper(),
            entry=entry)

        self._content['history'].insert(0, meta_string)
        self.logger(meta_string)