Secret Manager create secret throwing an exception about aws-sdk-kotlin HOT 2 CLOSED

import aws.sdk.kotlin.runtime.AwsServiceException
import aws.sdk.kotlin.secretsmanager.model.CreateSecretRequest
import kotlinx.coroutines.runBlocking
import software.aws.clientrt.config.IdempotencyTokenProvider
import software.aws.clientrt.http.readAll
import software.aws.clientrt.http.response.HttpResponse
import java.util.*

fun main() = runBlocking {
    val client = SecretsManagerClient {
        region = "us-east-2"
        idempotencyTokenProvider = IdempotencyTokenProvider { UUID.randomUUID().toString() }
    }

    try {
        val req = CreateSecretRequest {
            name = "FirstSecret20111"
            description = "This secret was created by the AWS Secret Manager Kotlin API"
            secretString = "3876555532989"
        }
        val resp = client.createSecret(req)
        println("created secret: $resp")
    }catch(ex: AwsServiceException) {
        val httpResp = ex.protocolResponse as HttpResponse
        println(httpResp)
        println(httpResp.body.readAll()?.decodeToString())
        println(ex)
    }


    client.close()
    Unit
}