{ mkDerivation, base, fetchurl, template-haskell }:
mkDerivation {
  pname = "partial-isomorphisms";
  version = "0.2.2.1";
  src = fetchurl {
    url = "http://example.org/";
    sha256 = "abc";
  };
  libraryHaskellDepends = [ base template-haskell ];
  homepage = "http://www.informatik.uni-marburg.de/~rendel/unparse";
  description = "Partial isomorphisms";
  license = stdenv.lib.licenses.bsd3;
}