How to perform Algrebraic operations on "IntervalBox.()"?

Hello All,

There are two interval box X = IntervalBox.(0..5, 5..10, 10..15) and Y=IntervalBox.(-5..3, 11..13, 7..11).
Please let me know how to do elementwise union, and intersection between the two IntervalBoxes IntervalArithmetic.jl package.

Thanks in advance.