code: public static Map.Entry<String, Map<String, ?>> pressKeyCodeCommand(int key) {
          return new AbstractMap.SimpleEntry<>(
                  PRESS_KEY_CODE, prepareArguments("keycode", key));
      }
docs: This method forms a {@link java.util.Map} of parameters for the
  key event invocation.
  
  @param key code for the key pressed on the device.
  @return a key-value pair. The key is the command name. The value is a
  {@link java.util.Map} command arguments.