http4k / org.http4k.lens / BiDiMultiLensSpec / optional
abstract fun optional(name: String, description: String?): BiDiLens<IN, List<OUT>?>
abstract fun optional(name:
String
, description:
?):
BiDiLens
<IN,
List
<OUT>?>
Make a concrete Lens for this spec that looks for an optional list of values in the target.