def __init__(self, intervals: dict[int, Interval] | None = None) -> None:
        """
        A box of intervals.

        :param intervals: A dictionary of intervals with features as keys.
        """
        if intervals is None:
            self.intervals = {}
        else:
            self.intervals = intervals

        A box of intervals.

        :param intervals: A dictionary of intervals with features as keys.
        
art/metrics/verification_decisions_trees.py