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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 _load_or_create(self, *argv, **kwargs):
 """Invoke the file system operations to get the data, or create work. If the file does not exist, calling ``__do_work__`` and save it. """

        if self.path.exists():
            self._info('loading work from {}'.format(self.path))
            with open(self.path, 'rb') as f:
                obj = pickle.load(f)
        else:
            self._info('saving work to {}'.format(self.path))
            with open(self.path, 'wb') as f:
                obj = self._do_work(*argv, **kwargs)
                pickle.dump(obj, f)
        return obj