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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 _root_dirent(self):
 """Returns the root folder dirent as filesystem_walk API doesn't."""

        fstat = self._filesystem.stat('/')

        yield Dirent(fstat['ino'], self._filesystem.path('/'),
                     fstat['size'], 'd', True,
                     timestamp(fstat['atime'], 0),
                     timestamp(fstat['mtime'], 0),
                     timestamp(fstat['ctime'], 0),
                     0)