* var_vals is str,int
* remove imports
* remove print
* fix test
* change var_vals in hcq
* update test_hcq
* fix multitensor _device_num var
* fix syminfer test
* shorten line
* p.vars stays list[Variable]
* shorten line
* vars is back to tuple[Variable, ...]
* change var_vals in extra
* change var_vals from shapetracker
* var_vals is str:int
* fix signature
* move device tests to test/device
* test speedups
* test device
* linalg to unit
* upd
* so pytest just works
* more divide and skip
* speed
* test devectorize
* add pillow