parse method
Implementation
Map<String, dynamic> parse() {
ArgResults results = _argParser.parse(_args);
final Map<String, dynamic> map = <String, dynamic>{};
for (final key in results.options) {
final value = results[key];
if (value is List) {
map[key] = value;
} else if (value != null) {
map[key] = value.toString();
}
}
return map;
}