{ mkDerivation, base, doctest, hedgehog, stdenv }:
mkDerivation {
  pname = "partial-semigroup";
  version = "0.3.0.2";
  sha256 = "deadbeef";
  libraryHaskellDepends = [ base ];
  testHaskellDepends = [ base doctest hedgehog ];
  homepage = "https://github.com/chris-martin/partial-semigroup";
  description = "A partial binary associative operator";
  license = stdenv.lib.licenses.asl20;
}