Crystal tests all in the green; had to cast __hash__ back to int (from numpy.int64) and explicitly define _asdict() in GroupOp for YAML.
Crystal tests all in the green; had to cast __hash__ back to int (from numpy.int64) and explicitly define _asdict() in GroupOp for YAML.

DallasTrinkle/Onsager,DallasTrinkle/Onsager