module cli fn version_flag(with_abbrev bool) Flag { sabbrev := if with_abbrev { 'v' } else { '' } return Flag{ flag: .bool name: 'version' abbrev: sabbrev description: 'Prints version information' } } fn version_cmd() Command { return Command{ name: 'version' description: 'Prints version information' execute: version_func } } fn version_func(version_cmd Command) ? { cmd := version_cmd.parent version := '$cmd.name version $cmd.version' println(version) }