My own take on the very prevalent angled wago mount. This version has retainer lips on the rear side so the wago can't slide out. Also I think all the others are double mounts.
If using this with high voltages or current, you should probably print it in something like https://www.prusa3d.com/product/prusament-petg-v0-natural-1kg/
The author marked this model as their own original creation.