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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 maybe_readable_combine_ids(cls, ids):
 """Generates combined id for a set of ids, but if the set is a single id, just use that. :API: public """

    ids = list(ids)  # We can't len a generator.
    return ids[0] if len(ids) == 1 else cls.combine_ids(ids)