Description:
    Generates a config class with the given name and list of parameters.

    Use `--yml` / `--no-yml` option to specify whether you want to create a YAML config as well
    (if no option is specified, the generator would ask you to choose during the run).

    Use `--app` option to create config class in `app/configs` folder.

Example:
    rails generate config my_service param1 param2 ...

    This will create:
        config/configs/my_service_config.rb
