1```console 2$ 04_04_custom --help 3A simple to use, efficient, and full-featured Command Line Argument Parser 4 5Usage: 04_04_custom[EXE] [OPTIONS] [INPUT_FILE] 6 7Arguments: 8 [INPUT_FILE] some regular input 9 10Options: 11 --set-ver <VER> set version manually 12 --major auto inc major 13 --minor auto inc minor 14 --patch auto inc patch 15 --spec-in <SPEC_IN> some special input argument 16 -c <CONFIG> 17 -h, --help Print help 18 -V, --version Print version 19 20$ 04_04_custom 21? failed 22error: Can only modify one version field 23 24Usage: 04_04_custom[EXE] [OPTIONS] [INPUT_FILE] 25 26For more information, try '--help'. 27 28$ 04_04_custom --major 29Version: 2.2.3 30 31$ 04_04_custom --major --minor 32? failed 33error: Can only modify one version field 34 35Usage: 04_04_custom[EXE] [OPTIONS] [INPUT_FILE] 36 37For more information, try '--help'. 38 39$ 04_04_custom --major -c config.toml 40? failed 41Version: 2.2.3 42error: INPUT_FILE or --spec-in is required when using --config 43 44Usage: 04_04_custom[EXE] [OPTIONS] [INPUT_FILE] 45 46For more information, try '--help'. 47 48$ 04_04_custom --major -c config.toml --spec-in input.txt 49Version: 2.2.3 50Doing work using input input.txt and config config.toml 51 52``` 53