memory!

    The best practice in OkHttp 3 is to create a single OkHttpClient instance
    and share it throughout the application. Requests that needs a customized
    client should call `OkHttpClient.newBuilder()` on that shared instance.
    This allows customization without the drawbacks of separate connection
    pools.

 *     .addInterceptor(new HttpLoggingInterceptor())
 *     .cache(new Cache(cacheDir, cacheSize))
 *     .build();
 * ```
 *
 * ## Customize Your Client With newBuilder()
 *
 * You can customize a shared OkHttpClient instance with [newBuilder]. This builds a client that
 * shares the same connection pool, thread pools, and configuration. Use the builder methods to