val addressType = fromSource.readByte() and 0xff
    val toAddress =
      when (addressType) {
        ADDRESS_TYPE_IPV4 -> {
          InetAddress.getByAddress(fromSource.readByteArray(4L))
        }

        ADDRESS_TYPE_DOMAIN_NAME -> {
          val domainNameLength: Int = fromSource.readByte() and 0xff
          val domainName = fromSource.readUtf8(domainNameLength.toLong())

      val result = Buffer()
      for (protocol in alpnProtocolNames(protocols)) {
        result.writeByte(protocol.length)
        result.writeUtf8(protocol)
      }
      return result.readByteArray()
    }
  }

   * may trigger an [OutOfMemoryError]. Prefer to stream the response body if this is a
   * possibility for your response.
   */
  @Throws(IOException::class)
  fun bytes() = consumeSource(BufferedSource::readByteArray) { it.size }

  /**
   * Returns the response as a [ByteString].
   *
   * This method loads entire response body into memory. If the response body is very large this