http4k / org.http4k.lens / BiDiMapping / invoke
@JvmName("asIn") operator fun invoke(out: OUT): IN
@JvmName("asOut") operator fun invoke(asIn: IN): OUT
operator inline fun <IN, reified T> invoke(noinline asOut: (IN) -> T, noinline asIn: (T) -> IN):
BiDiMapping
<IN, T>