如何在序列化过程中保存kotlin数据类中字段的大小写？

import kotlinx.serialization.*
import kotlinx.serialization.descriptors.*
import kotlinx.serialization.encoding.*
import kotlinx.serialization.json.*

@Serializer(forClass = YourDataClass::class)
object YourDataClassSerializer : KSerializer<YourDataClass> {
    override val descriptor: SerialDescriptor = buildClassSerialDescriptor("YourDataClass") {
        element<String>("fieldName")
        // Add more elements for other fields in YourDataClass
    }

    override fun serialize(encoder: Encoder, value: YourDataClass) {
        val jsonEncoder = encoder.beginStructure(descriptor)
        jsonEncoder.encodeStringElement(descriptor, 0, value.fieldName)
        // Serialize other fields in YourDataClass
        jsonEncoder.endStructure(descriptor)
    }

    override fun deserialize(decoder: Decoder): YourDataClass {
        val jsonDecoder = decoder.beginStructure(descriptor)
        lateinit var fieldName: String
        // Declare variables for other fields in YourDataClass
        loop@ while (true) {
            when (val index = jsonDecoder.decodeElementIndex(descriptor)) {
                0 -> fieldName = jsonDecoder.decodeStringElement(descriptor, 0)
                // Deserialize other fields in YourDataClass
                CompositeDecoder.DECODE_DONE -> break@loop
                else -> throw SerializationException("Unknown index $index")
            }
        }
        jsonDecoder.endStructure(descriptor)
        return YourDataClass(fieldName)
        // Return YourDataClass with other deserialized fields
    }
}

@Serializable(with = YourDataClassSerializer::class)
data class YourDataClass(val fieldName: String) {
    // Define other fields in YourDataClass
}

import kotlinx.serialization.encodeToString
import kotlinx.serialization.decodeFromString

fun main() {
    val data = YourDataClass("example")
    val json = Json.encodeToString(data)
    println(json) // Serialized JSON string

    val deserializedData = Json.decodeFromString<YourDataClass>(json)
    println(deserializedData.fieldName) // Output: example
}