def from_tuples(cls, tups):
        """
        Create a new IntervalTree from an iterable of 2- or 3-tuples,
         where the tuple lists begin, end, and optionally data.
        """
        ivs = [Interval(*t) for t in tups]
        return IntervalTree(ivs)
Create a new IntervalTree from an iterable of 2- or 3-tuples,
         where the tuple lists begin, end, and optionally data.