{ mkDerivation, base, containers, directory, fetchurl, filepath
, HUnit, hxt, json, mtl, parsec, regex-tdfa, tasty, tasty-hunit
}:
mkDerivation {
  pname = "katydid";
  version = "0.1.1.0";
  src = fetchurl {
    url = "http://example.org/";
    sha256 = "abc";
  };
  isLibrary = true;
  isExecutable = true;
  libraryHaskellDepends = [
    base containers hxt json mtl parsec regex-tdfa
  ];
  executableHaskellDepends = [ base mtl ];
  testHaskellDepends = [
    base containers directory filepath HUnit hxt json mtl parsec tasty
    tasty-hunit
  ];
  homepage = "https://github.com/katydid/katydid-haskell";
  description = "A haskell implementation of Katydid";
  license = stdenv.lib.licenses.bsd3;
}