{ fetchurl }:

fetchurl {
  url = "https://github.com/commercialhaskell/all-cabal-hashes/archive/6272b092cf23aa30154cd90ab0f5786c69bceb17.tar.gz";
  sha256 = "11qs8whpqkj1l3mhx9ibpwh5pwgwj0xb6r9r8c7wk414vdmaa5mw";
}
