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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 get_data_files(top):
 """Get data files"""


    data_files = []
    ntrim = len(here + os.path.sep)

    for (d, _, filenames) in os.walk(top):
        data_files.append((
            d[ntrim:],
            [os.path.join(d, f) for f in filenames]
        ))
    return data_files