std.lib.return
return-chain
added in 3.0
(return-chain out f)chains a function if a future or resolves if not
(return-chain 1 inc) => 2
@(return-chain (f/future 1) inc) => 2
return-resolve
added in 3.0
(return-resolve res)resolves encased futures
(return-resolve (f/future (f/future 1))) => 1