{ mkDerivation, aeson, base, stdenv, validity, validity-scientific , validity-text, validity-unordered-containers, validity-vector }: mkDerivation { pname = "validity-aeson"; version = "0.1.0.0"; sha256 = "deadbeef"; libraryHaskellDepends = [ aeson base validity validity-scientific validity-text validity-unordered-containers validity-vector ]; homepage = "https://github.com/NorfairKing/validity#readme"; description = "Validity instances for aeson"; license = stdenv.lib.licenses.mit; }