@Command(scope = "gpio", name = "write", description = "Write a value to a GPIO pin") public class GpioWriteCommand extends AbstractCommand { @Argument(index = 0, name = "pin", description = "GPIO pin number", required = true, multiValued = false) int pin; @Argument(index = 1, name = "value", description = "Value to write (0 or 1)", required = true, multiValued = false) int value; @Override public Object execute(CommandSession session) throws Exception { // ... return null; } }