```console
$ 03_06_optional_derive --help
A simple to use, efficient, and full-featured Command Line Argument Parser
Usage: 03_06_optional_derive[EXE] [NAME]
Arguments:
[NAME]
Options:
-h, --help Print help
-V, --version Print version
$ 03_06_optional_derive
name: None
$ 03_06_optional_derive bob
name: Some("bob")
```