* winograd
* simplify local groups code
* comment
* respects self.opts.has_local
* always simplify ones
* make mypy happy
* move reshape, WINO flag
* wino flag, simple forward backward test for wino
* extra wino test
* merge oops
* comments
* axis_needs_valid -> axis_is_masked
* don't delete needs_valid (it's unused though)
* make linter happy
* make linter happy
* smaller test
* change number
* make wino tests very small