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```console
$ demo --help
clap [..]
A simple to use, efficient, and full-featured Command Line Argument Parser
USAGE:
demo[EXE] [OPTIONS] --name <NAME>
OPTIONS:
-c, --count <COUNT> Number of times to greet [default: 1]
-h, --help Print help information
-n, --name <NAME> Name of the person to greet
-V, --version Print version information
$ demo --name Me
Hello Me!
```
*(version number and `.exe` extension on windows replaced by placeholders)*
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