def test_keymap(keymap: list[list], output: bool = False) -> None:
    if output:
        print("Testing keymap for errors")
    for layer in keymap:
        for key in layer:
            print(
                f"[{keymap.index(layer)}][{layer.index(key)}] {key.__class__.__name__}", end=": ")
            key.self_test(keymap)
            print("Valid")
    if output:
        print("Done testing keymap")