}

  /**
   * Returns the ratio of cache requests which were hits. This is defined as {@code hitCount /
   * requestCount}, or {@code 1.0} when {@code requestCount == 0}. Note that {@code hitRate +
   * missRate =~ 1.0}.
   */
  public double hitRate() {
    long requestCount = requestCount();
    return (requestCount == 0) ? 1.0 : (double) hitCount / requestCount;
  }

  /**

        .Builder()
        .status("ICY 200 OK")
        .addHeader("Accept-Ranges: none")
        .addHeader("Content-Type: audio/mpeg")
        .addHeader("icy-br:128")
        .addHeader("ice-audio-info: bitrate=128;samplerate=44100;channels=2")
        .addHeader("icy-br:128")
        .addHeader("icy-description:Rock")
        .addHeader("icy-genre:riders")
        .addHeader("icy-name:A2RRock")