1{ 2${indent(1)}${(',\n' + indent(1)).join([val.argument(loader, indent=indent +1) for val in arg.values])} 3${indent(0)}}\ 4
1{ 2${indent(1)}${(',\n' + indent(1)).join([val.argument(loader, indent=indent +1) for val in arg.values])} 3${indent(0)}}\ 4