Some sort of function that returns a variable number of arguments. It's basically the same as the list monad in haskell, and there are examples here https://en

Some sort of function that returns a variable number of arguments. It's basically the same as the list monad in haskell, and there are examples here https://en.wikibooks.org/wiki/Haskell/Understanding_monads/List https://en.wikibooks.org/wiki/Haskell/Understanding_monads/L... that can be followed even if you don't know any Haskell.