private BitFieldArgs addSubCommand(SubCommand subCommand) {

        LettuceAssert.notNull(subCommand, "SubCommand must not be null");
        commands.add(subCommand);
        return this;
    }
private BitFieldArgs addSubCommand ( SubCommand subCommand ) { LettuceAssert . notNull ( subCommand , "SubCommand must not be null" ) ; commands . add ( subCommand ) ; return this ; }
Adds a new {@link SubCommand} to the {@code BITFIELD} execution.

@param subCommand must not be {@literal null}.