OptionalconfigOptionaldefaultIf not specified defaults to 0.
The help text to be displayed to the user when --help is passed.
This may be a string, which will be presented directly, or a function, which will be called so that option help can be translated into the user specified locale.
OptionalmaxHighest possible value.
OptionalminLowest possible value.
The option name.
The parameter type, used to convert user configuration values into the expected type. If not set, the type will be a string.
OptionalvalidateAn optional validation function that validates a potential value of this option. The function must throw an Error if the validation fails and should do nothing otherwise.
If set, this option will be omitted from
--help, and attempting to specify it on the command line will produce an error.