import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

public final class CurrentDateHeader {
  private final OkHttpClient client = new OkHttpClient.Builder()
      .addInterceptor(new CurrentDateInterceptor())
      .build();

  public void run() throws Exception {
    Request request = new Request.Builder()
        .url("https://publicobject.com/helloworld.txt")
        .build();