* Remove the mypy version constraint and set strict_optional to False. * Add type annotations for `ISA` variables. mypy 0.600 seems to require explicit annotations here. * Annotate the ISA variables in the defs.py files too.
* Remove the mypy version constraint and set strict_optional to False. * Add type annotations for `ISA` variables. mypy 0.600 seems to require explicit annotations here. * Annotate the ISA variables in the defs.py files too.