{ mkDerivation, array, base, containers, fetchurl, transformers }:
mkDerivation {
  pname = "data-accessor";
  version = "0.2.2.7";
  src = fetchurl {
    url = "http://example.org/";
    sha256 = "abc";
  };
  libraryHaskellDepends = [ array base containers transformers ];
  homepage = "http://www.haskell.org/haskellwiki/Record_access";
  description = "Utilities for accessing and manipulating fields of records";
  license = stdenv.lib.licenses.bsd3;
}