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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):
 """ Returns true if the path exists and false otherwise. """

        import hdfs
        try:
            self.client.status(path)
            return True
        except hdfs.util.HdfsError as e:
            if str(e).startswith('File does not exist: '):
                return False
            else:
                raise e