Make `kotlinx.serialization.json.Json.configuration` public

[comahe-de]

Hi,

I want to write a custom serializer, where I also need to access the configuration of the Json class . But it is marked a internal

public sealed class Json(internal val configuration: JsonConf) : StringFormat {

So I have to use this hack to access the configuration

        val decoder: JsonDecoder = ...
        var classDiscriminatorConfig: String? = null
        Json(decoder.json) {
            classDiscriminatorConfig = classDiscriminator // the value I want to know
        }

So I would like to change the visibility of kotlinx.serialization.json.Json.configuration to public:

    public sealed class Json(val configuration: JsonConf) : StringFormat {

and also kotlinx.serialization.json.internal.JsonConf to be to public (and moving to package kotlinx.serialization.json)

package kotlinx.serialization.json
...
data class JsonConf

[qwwdfsad]

Thanks for the use-case! We'll reconsider our decision for the next major version

[sandwwraith]

Same problem: #1323