>>> res = grid_do('onyx.grid.griddy', 'my_func', ((1,2,3), ('a', 'b', 'c')), dir=module_dir, fake_grid=True)
pickle_files: ...grid_do.0.pkl ...grid_do.1.pkl
run_function: my_func ( 1, 2, 3 )
run_function: my_func ( 'a', 'b', 'c' )
>>> res
[(1, 2, 3), ('a', 'b', 'c')]