FlagSpec
constructor(names: List<String>, help: String = "", negationNames: List<String> = emptyList(), default: Boolean = false)
Parameters
names
the flag's names, primary first, for example ["--verbose", "-v"].
help
help text for --help.
negationNames
names that set the flag to false, for example ["--no-verbose"].
default
the value used when neither a name nor a negation name is present.