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// This file was automatically generated from json.md by Knit tool. Do not edit.
package example.exampleJson24
import kotlinx.serialization.*
import kotlinx.serialization.json.*
import kotlinx.serialization.builtins.*
@Serializable
data class Project(
val name: String,
@Serializable(with = UserListSerializer::class)
val users: List<User>
)
@Serializable
data class User(val name: String)
object UserListSerializer : JsonTransformingSerializer<List<User>>(ListSerializer(User.serializer())) {
override fun transformSerialize(element: JsonElement): JsonElement {
require(element is JsonArray) // this serializer is used only with lists
return element.singleOrNull() ?: element
}
}
fun main() {
val data = Project("kotlinx.serialization", listOf(User("kotlin")))
println(Json.encodeToString(data))
}
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