class CacheResponse(cacheDirectory: File) {
  private val client: OkHttpClient =
    OkHttpClient.Builder()
      .cache(
        Cache(
          directory = cacheDirectory,
          // 1 MiB.
          maxSize = 10L * 1024L * 1024L,
        ),
      )
      .build()

  fun run() {
    val request =
      Request.Builder()
        .url("http://publicobject.com/helloworld.txt")
        .build()