* resulting implementation is specialized for enum key types. The returned map and its views will
   * iterate over keys in their enum definition order, not encounter order.
   *
   * <p>If the mapped keys contain duplicates, the values are merged using the specified merging
   * function.
   *
   * @since 21.0
   */
  public static <T extends @Nullable Object, K extends Enum<K>, V>

   *
   * <p>The iteration order of the returned map follows the enum's iteration order, not the order in
   * which the elements appear in the given map.
   *
   * @param map the map to make an immutable copy of
   * @return an immutable map containing those entries
   * @since 14.0
   */
  public static <K extends Enum<K>, V> ImmutableMap<K, V> immutableEnumMap(
      Map<K, ? extends V> map) {

    assertThat(
      requestAfter.exchangeIndex == 0 ||
        server.requestCount == 3 &&
        server.takeRequest().exchangeIndex == 0,
    ).isTrue()
  }

  internal enum class WriteKind {
    BYTE_BY_BYTE,
    SMALL_BUFFERS,
    LARGE_BUFFERS,
  }

  @Test
  fun chunkedUpload_byteByByte() {
    doUpload(TransferKind.CHUNKED, WriteKind.BYTE_BY_BYTE)
  }

  }

  boolean usesKeyReferences() {
    return keyStrength != Strength.STRONG;
  }

  boolean usesValueReferences() {
    return valueStrength != Strength.STRONG;
  }

  enum Strength {
    /*
     * TODO(kevinb): If we strongly reference the value and aren't loading, we needn't wrap the
     * value. This could save ~8 bytes per entry.
     */

    STRONG {
      @Override

    val truncatedBody = Buffer()
    truncatedBody.write(fullBody, numBytesToKeep.toLong())
    builder.body(truncatedBody)
    builder.headers(headers)
    return builder
  }

  internal enum class TransferKind {
    CHUNKED {
      override fun setBody(
        response: MockResponse.Builder,
        content: Buffer,
        chunkSize: Int,
      ) {