/** Don't store the server's response in any cache. */
    fun noStore() = commonNoStore()

    /**
     * Only accept the response if it is in the cache. If the response isn't cached, a `504
     * Unsatisfiable Request` response will be returned.
     */
    fun onlyIfCached() = commonOnlyIfCached()

    /** Don't accept a transformed response. */
    fun noTransform() = commonNoTransform()

  }

  private fun getCacheOnlyResponse(request: Request): Response? {
    if (client.cache != null) {
      try {
        // Use the cache without hitting the network first
        // 504 code indicates that the Cache is stale
        val onlyIfCached =
          CacheControl.Builder()
            .onlyIfCached()
            .build()

        var cacheUrl = request.url

 *         .onlyIfCached()
 *         .build())
 *     .url("http://publicobject.com/helloworld.txt")
 *     .build();
 * Response forceCacheResponse = client.newCall(request).execute();
 * if (forceCacheResponse.code() != 504) {
 *   // The resource was cached! Show it.
 * } else {
 *   // The resource was not cached.
 * }
 * ```
 *
 * This technique works even better in situations where a stale response is better than no response.

### Canceling a Call ([.kt][CancelCallKotlin], [.java][CancelCallJava])