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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 _groups_of(length, total_length):
 """ Return an iterator of tuples for slicing, in 'length' chunks. Parameters length : int Length of each chunk. total_length : int Length of the object we are slicing Returns ------- iterable of tuples Values defining a slice range resulting in length 'length'. """

    indices = tuple(range(0, total_length, length)) + (None, )
    return _pairwise(indices)