byNullableDouble

fun JsonObject?.byNullableDouble(key: String? = null, default: JsonObjectDefaultSelector<Double?>): JsonDelegateProperty<Double?>
fun JsonObject?.byNullableDouble(key: String? = null, default: Double?): JsonDelegateProperty<Double?>
fun JsonObject?.byNullableDouble(key: String): JsonDelegateProperty<Double?>
val JsonObject?.byNullableDouble: JsonDelegateProperty<Double?>