I have the folding kind and there is no cutting it. Pedego ebike company produces one and guarantees they will replace my bike for free if it’s stolen while using this lock. Sorry for the long URL but this is the one I use.
Kryptonite Evolution Mini-7 Bike U-Lock with Cable, Heavy Duty Anti-Theft Bicycle U Lock, 13mm Shackle and 10mm x4ft Length Security Cable with Mounting Bracket and Keys