// Bindings that use valid modifiers and valid keys are accepted use penrose_proc::validate_user_bindings; fn main() { validate_user_bindings!(( "a", "M-b", "A-c", "S-d", "C-e", "M-A-f", "A-S-g", "M-S-C-h", "M-A-S-C-i", )()); }