{cabal}:

cabal.mkDerivation (self : {
  pname = "transformers";
  version = "0.1.4.0";
  sha256 = "6d222d1cbed75063753a7c828d7f429f24974d261872c7b70fe90a003c93646d";
  meta = {
    description = "Concrete monad transformers";
  };
})