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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 flush(self):
 """ Append the latest updates to file, or optionally to stdout instead. See the constructor for logging options. """

        latest = self._latest()
        self._chars_flushed += len(latest)
        if self._use_stdout:
            file = sys.stdout
        else:
            file = open(self.logpath(), 'a')

        print(latest, file=file, flush=True, end='')

        if not self._use_stdout:
            file.close()