我刚开始实习，我被要求用Retrofit等进行一些基本的实现。我有一个Json响应，它有一个根据请求参数更改的键值，我不知道如何获得该键值。
"就像这样"

{
  "status": {
    /*Some other unimportant JSON here */
  },
  "data": {
    "KEY_THAT_CHANGES": {
      "id": 74,
      /* more JSON here */
    }
  }
}

我想有多种解决方案可以获得该密钥：通过索引（因为它总是“data”中的第一个键）或通过将可序列化名称作为参数传递（因为我已经有了键）或使用自定义的反序列化类。

**请求函数：**Json中的key与symbol参数相同

@Headers(API_KEY)
    @GET("v1/cryptocurrency/info")
    fun getCoin(@Query("symbol")symbol: String):Call<CoinInfo>

我有以下数据类来保存数据：

data class CoinInfo(
    val `data`: Data,
    val status: Status
)

data class Status(
    val credit_count: Int,
    val elapsed: Int,
    val error_code: Int,
    val error_message: Any,
    val notice: Any,
    val timestamp: String
)

data class Data(
    val Coin: Coin //Here is the problem, the key is dynamically changing
)

data class Coin(
    val category: String,
    val date_added: String,
    val description: String,
    val id: Int,
    val is_hidden: Int,
    val logo: String,
    val name: String,
    val notice: String,
    val platform: Any,
    val slug: String,
    val subreddit: String,
    val symbol: String,
    @SerializedName("tag-groups")
    val tag_groups: List<String>,
    @SerializedName("tag-names")
    val tag_names: List<String>,
    val tags: List<String>,
    val twitter_username: String,
    val urls: Urls
)

请求呼叫

val api = Retrofit.Builder()
             .baseUrl(BASE_URL)
             .addConverterFactory(GsonConverterFactory.create())
             .build()
             .create(getRequest::class.java)

GlobalScope.launch(Dispatchers.IO) {
     val response = api.getCoin(coin.symbol).awaitResponse() // coin.symbol is also the key of the JSON

            if(response.isSuccessful){
                val data = response.body()!!

                withContext(Dispatchers.Main){
                    // TO DO
                }
            }
        }

我找不到任何有用的解决方案，我只是开始学习Kotlin约36小时前。