// retoor <retoor@molodetz.nl>
import "argparse" for ArgumentParser
var parser = ArgumentParser.new()
parser.addArgument("-v", {"action": "count"})
var args = parser.parseArgs([])
System.print(args["v"]) // expect: 0
var args2 = parser.parseArgs(["-v"])
System.print(args2["v"]) // expect: 1
var args3 = parser.parseArgs(["-v", "-v", "-v"])
System.print(args3["v"]) // expect: 3