sourceafBeanUtils::ArgNotFoundErr.fan
** A simple implementation of `NotFoundErr` that extends 'ArgErr'.@Js const class ArgNotFoundErr : ArgErr, NotFoundErr { override const Str?[] availableValues new make(Str msg, Obj?[] availableValues, Err? cause := null) : super(msg, cause) { this.availableValues = availableValues.map { it?.toStr }.sort } override Str toStr() { NotFoundErr.super.toStr } }