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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 print_version(self):
 """ Print the program version. """


        if not self._version:
            return self

        if not self._title:
            print('  %s %s' % (self._name, self._version))
            return self

        print('  %s (%s %s)' % (self._title, self._name, self._version))
        return self