Thanks for the swift pointer, I’m not too familiar with that language. As for the more formalized version, effect types come into the picture, that let a funct

Thanks for the swift pointer, I’m not too familiar with that language. As for the more formalized version, effect types come into the picture, that let a function be parametric in how it handles its functional parameters. E.g. a `map` could be throwing if given a throwing f, but non-throwing otherwise. But these can even handle more complicated effects as well.