如何通过Kotlinx序列化在Kotlin原生上创建嵌套JSON

implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.3.0")

@Serializable
data class Person(val name: String, val age: Int, val address: Address)

@Serializable
data class Address(val street: String, val city: String, val country: String)

import kotlinx.serialization.encodeToString
import kotlinx.serialization.json.Json

fun main() {
    val person = Person("John Doe", 30, Address("123 Street", "City", "Country"))
    val json = Json.encodeToString(person)
    println(json)
}

{
  "name": "John Doe",
  "age": 30,
  "address": {
    "street": "123 Street",
    "city": "City",
    "country": "Country"
  }
}