OptionalcompletionEnable shell completion support.
When true, the CLI will respond to:
--completion-script <shell> - Output shell completion script--get-bargs-completions <shell> <...words> - Return completion candidatesSupported shells: bash, zsh, fish
OptionaldescriptionDescription shown in help
OptionalepilogEpilog text shown after help output
OptionalthemeColor theme for help output
OptionalversionVersion string (enables --version flag)
Options for bargs().