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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 _chunks(iterable, n):
 """ Splits an iterable into chunks of size n. """

    iterable = iter(iterable)
    while True:
        # store one line in memory,
        # chain it to an iterator on the rest of the chunk
        yield chain([next(iterable)], islice(iterable, n-1))