var result = headerValue
  if (result == null) {
    result =
      buildString {
        if (noCache) append("no-cache, ")
        if (noStore) append("no-store, ")
        if (maxAgeSeconds != -1) append("max-age=").append(maxAgeSeconds).append(", ")
        if (sMaxAgeSeconds != -1) append("s-maxage=").append(sMaxAgeSeconds).append(", ")
        if (isPrivate) append("private, ")
        if (isPublic) append("public, ")

     *     precision; finer precision will be lost.
     */
    fun maxAge(maxAge: Duration) =
      apply {
        val maxAgeSeconds = maxAge.inWholeSeconds
        require(maxAgeSeconds >= 0) { "maxAge < 0: $maxAgeSeconds" }
        this.maxAgeSeconds = maxAgeSeconds.commonClampToInt()
      }

    fun maxStale(maxStale: Duration) =
      apply {
        val maxStaleSeconds = maxStale.inWholeSeconds

  fun cacheControl() {
    val cacheControl: CacheControl = CacheControl.Builder().build()
    val noCache: Boolean = cacheControl.noCache()
    val noStore: Boolean = cacheControl.noStore()
    val maxAgeSeconds: Int = cacheControl.maxAgeSeconds()
    val sMaxAgeSeconds: Int = cacheControl.sMaxAgeSeconds()
    val mustRevalidate: Boolean = cacheControl.mustRevalidate()
    val maxStaleSeconds: Int = cacheControl.maxStaleSeconds()

    assertThat(cacheControl.toString()).isEqualTo("")
    assertThat(cacheControl.noCache).isFalse()
    assertThat(cacheControl.noStore).isFalse()
    assertThat(cacheControl.maxAgeSeconds).isEqualTo(-1)
    assertThat(cacheControl.sMaxAgeSeconds).isEqualTo(-1)
    assertThat(cacheControl.isPrivate).isFalse()
    assertThat(cacheControl.isPublic).isFalse()
    assertThat(cacheControl.mustRevalidate).isFalse()

        "no-transform, immutable",
    )
    assertThat(cacheControl.noCache).isTrue()
    assertThat(cacheControl.noStore).isTrue()
    assertThat(cacheControl.maxAgeSeconds).isEqualTo(1)
    assertThat(cacheControl.maxStaleSeconds).isEqualTo(2)
    assertThat(cacheControl.minFreshSeconds).isEqualTo(3)
    assertThat(cacheControl.onlyIfCached).isTrue()

  fun cacheControl() {
    val cacheControl: CacheControl = CacheControl.Builder().build()
    val noCache: Boolean = cacheControl.noCache
    val noStore: Boolean = cacheControl.noStore
    val maxAgeSeconds: Int = cacheControl.maxAgeSeconds
    val sMaxAgeSeconds: Int = cacheControl.sMaxAgeSeconds
    val mustRevalidate: Boolean = cacheControl.mustRevalidate
    val maxStaleSeconds: Int = cacheControl.maxStaleSeconds

      val ageMillis = cacheResponseAge()
      var freshMillis = computeFreshnessLifetime()

      if (requestCaching.maxAgeSeconds != -1) {
        freshMillis = minOf(freshMillis, SECONDS.toMillis(requestCaching.maxAgeSeconds.toLong()))
      }

      var minFreshMillis: Long = 0
      if (requestCaching.minFreshSeconds != -1) {

	public final fun -deprecated_onlyIfCached ()Z
	public final fun -deprecated_sMaxAgeSeconds ()I
	public final fun immutable ()Z
	public final fun isPrivate ()Z
	public final fun isPublic ()Z
	public final fun maxAgeSeconds ()I
	public final fun maxStaleSeconds ()I
	public final fun minFreshSeconds ()I
	public final fun mustRevalidate ()Z
	public final fun noCache ()Z
	public final fun noStore ()Z
	public final fun noTransform ()Z

	public final fun -deprecated_onlyIfCached ()Z
	public final fun -deprecated_sMaxAgeSeconds ()I
	public final fun immutable ()Z
	public final fun isPrivate ()Z
	public final fun isPublic ()Z
	public final fun maxAgeSeconds ()I
	public final fun maxStaleSeconds ()I
	public final fun minFreshSeconds ()I
	public final fun mustRevalidate ()Z
	public final fun noCache ()Z
	public final fun noStore ()Z
	public final fun noTransform ()Z

        .execute()
        .use {
          assertEquals(200, it.code)
          assertNull(it.cacheResponse)
          assertNotNull(it.networkResponse)

          assertEquals(3, it.cacheControl.maxAgeSeconds)
          assertTrue(it.cacheControl.isPublic)
        }

      client
        .newCall(request)
        .execute()
        .use {
          assertEquals(200, it.code)