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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_file_md5(filename):
 """Compute the md5 checksum of a file"""

    md5_data = md5()
    with open(filename, 'rb') as f:
        for chunk in iter(lambda: f.read(128*md5_data.block_size), b''):
            md5_data.update(chunk)
    return md5_data.hexdigest()