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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 exists(self, path):
 """ Check if a given path exists on the filesystem. :type path: str :param path: the path to look for :rtype: bool :return: :obj:`True` if ``path`` exists """

        _complain_ifclosed(self.closed)
        return self.fs.exists(path)