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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 mv(hdfs_src, hdfs_dst):
 """Move a file on hdfs :param hdfs_src: Source (str) :param hdfs_dst: Destination (str) :raises: IOError: If unsuccessful """

    cmd = "hadoop fs -mv %s %s" % (hdfs_src, hdfs_dst)
    rcode, stdout, stderr = _checked_hadoop_fs_command(cmd)