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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 split_diff(old, new):
 """ Returns a generator yielding the side-by-side diff of `old` and `new`). """

        return map(lambda l: l.rstrip(),
                   icdiff.ConsoleDiff(cols=COLUMNS).make_table(old.splitlines(), new.splitlines()))