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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 _max_lengths():
 """ The length of the largest magic string + its offset"""

    max_header_length = max([len(x.byte_match) + x.offset
                             for x in magic_header_array])
    max_footer_length = max([len(x.byte_match) + abs(x.offset)
                             for x in magic_footer_array])
    return max_header_length, max_footer_length