How can I build up an AntBuilder call programmatically in Groovy?

Lets say I have this Groovy code:

ant.exec(executable:"cmd",osfamily:"windows",dir:bin) {
    arg(value: "/c")
    arg(value: "add-user.bat")
    arg(value: user)
    arg(value: pw)
    arg(value: "--silent")                                                                                                      
}

I have such exec calls often in my code with different number of arguments, so I tought it could be a function with an object array parameter:

private void execute(Object... argumens) {
    ant.sequential {
        exec(executable:"cmd",osfamily:"windows",dir:bin) {
            arg(value: "/c")
            //What should I do here
        }
    }
}

//It would be called like this:
execute("add-user.bat",user,pw,"--silent");

What should I write inside the exec element? Is it possible at all to have an iteration inside that exec?

Please be patient with me, I am a Java guy, who wants to write some script in Maven, so I did not understand the magic, which happens in the AntBuilder of Groovy. If you have some easy to understand explanation about how AntBuilder in Groovy works, it is appreciated.

You should be able to do:

private void execute(Object... argumens) {
    ant.sequential {
        exec(executable:"cmd",osfamily:"windows",dir:bin) {
            arg(value: "/c")
            argumens.each {
                arg(value: it)
            }
        }
    }
}