Users can declare or Command, OptionHandler classes in an init script
or they can use a DSL, e.g.
command("foo") { args -> println "Do stuff with ${args} array" }
or
command("foo") {
options { option "bar", "Help text for bar option" ithOptionArg() ofType Integer }
run { options -> println "Do stuff with ${options.valueOf('bar')}" }
}