run function
Implementation
Future<int> run(List<String> args) async {
try {
return await AlexCommandRunner().run(args) ?? 2;
} on UsageException catch (e, st) {
print.exception(e, st);
return _failed(args, 64, e.message);
} catch (e, st) {
print.exception(e, st);
return _failed(args, -1, '$e');
}
}