code: public static Map.Entry<String, Map<String, ?>> powerACCommand(
              PowerACState powerACState) {
          return new AbstractMap.SimpleEntry<>(POWER_AC_STATE,
                  prepareArguments("state", powerACState.name().toLowerCase()));
      }
docs: This method forms a {@link Map} of parameters for the element
  value replacement. It is used against input elements
  
  @param powerACState One of available power AC state
  
  @return a key-value pair. The key is the command name. The value is a {@link Map} command arguments.