private val headersQueue = ArrayDeque<Headers>()

  /** True if response headers have been sent or received. */
  private var hasResponseHeaders: Boolean = false

  internal val source =
    FramingSource(
      maxByteCount = connection.okHttpSettings.initialWindowSize.toLong(),
      finished = inFinished,
    )
  internal val sink =
    FramingSink(
      finished = outFinished,
    )