OptionSpec

A named parameter that takes a value, for example --count 3, --count=3, or -c 3.

Constructors

OptionSpec(names: List<String>, converter: Converter<*>, help: String, required: Boolean, default: Any?, multiple: Boolean)

names: the option's names, primary first, for example ["--count", "-c"].
converter: converts each raw value to the typed result.
help: help text for --help.
required: whether at least one occurrence must be supplied.
default: the already-converted value used when a single-valued option is absent.
multiple: when true repeats accumulate into a list; when false a second occurrence is an ArgotParseException.DuplicateValue.