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Scala (http://www.scala-lang.org/) Clojure (http://clojure.org/) Haskell (http://www.haskell.org/) OCaml (http://caml.inria.fr/)
https://leiningen.org/
[1]: https://github.com/IGJoshua/farolero
However, it depends from your use-case. Could add some detail please?
[1]: http://www.http-kit.org/
[1] https://github.com/clojure/core.typed
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