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// retoor <retoor@molodetz.nl>
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import "argparse" for ArgumentParser
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var parser = ArgumentParser.new()
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parser.addArgument("-l", {"long": "--level", "choices": ["debug", "info", "warn", "error"]})
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var args = parser.parseArgs(["-l", "info"])
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System.print(args["level"]) // expect: info
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var args2 = parser.parseArgs(["--level", "error"])
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System.print(args2["level"]) // expect: error
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var args3 = parser.parseArgs(["--level", "debug"])
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System.print(args3["level"]) // expect: debug
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