eBike pedal sensor clip for (old) one-piece crank bottom bracket

This is a clip designed to hold the pedal (cadence) sensor onto the bottom bracket of my bicycle that has a one-piece crank.

The sensor, which I believe is a generic type (no particular brand) was designed to fit inside of a detachable ('cotterless') crank as found on good-quality older or typical newer bicycles.

Unfortunately I was fitting my eBike kit to an older and cheap bicycle with a bottom bracket that has a Z-shaped one-piece crank threaded through it. Therefore I had to devise so