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+```console
+$ 03_03_positional_derive --help
+clap [..]
+A simple to use, efficient, and full-featured Command Line Argument Parser
+
+USAGE:
+ 03_03_positional_derive[EXE] [NAME]
+
+ARGS:
+ <NAME>
+
+OPTIONS:
+ -h, --help Print help information
+ -V, --version Print version information
+
+$ 03_03_positional_derive
+name: None
+
+$ 03_03_positional_derive bob
+name: Some("bob")
+
+```