) : RequestBody() {
  private val contentType: MediaType = "$type; boundary=$boundary".toMediaType()
  private var contentLength = -1L

  @get:JvmName("boundary")
  val boundary: String
    get() = boundaryByteString.utf8()

  /** The number of parts in this multipart body. */
  @get:JvmName("size")
  val size: Int
    get() = parts.size

  fun part(index: Int): Part = parts[index]

  override fun isOneShot(): Boolean {

  }

  private fun checkEntry(
    entry: Header,
    name: String,
    value: String,
    size: Int,
  ) {
    assertThat(entry.name.utf8()).isEqualTo(name)
    assertThat(entry.value.utf8()).isEqualTo(value)
    assertThat(entry.hpackSize).isEqualTo(size)
  }

  private fun assertBytes(vararg bytes: Int) {
    val expected = intArrayToByteArray(bytes)

  integrity sha512-m7a0FhE67DQXgouf1tbN5XQcdWoNgaAuoULHIfGFIEVKA6tu/edls6XnIlkmS6FrXAquJRPni3ZZKjw6FSPjPQ==
  dependencies:
    "@xtuc/long" "4.2.2"

"@webassemblyjs/utf8@1.11.6":
  version "1.11.6"
  resolved "https://registry.yarnpkg.com/@webassemblyjs/utf8/-/utf8-1.11.6.tgz#90f8bc34c561595fe156603be7253cdbcd0fab5a"
  integrity sha512-vtXf2wTQ3+up9Zsg8sa2yWiQpzSsMyXj0qViVP6xKGCUT8p8YJ6HqI7l5eCnWx1T/FYdsv07HQs2wTFbbof/RA==

      if (logger.isLoggable(FINE)) logger.fine(format("<< CONNECTION ${connectionPreface.hex()}"))
      if (CONNECTION_PREFACE != connectionPreface) {
        throw IOException("Expected a connection header but was ${connectionPreface.utf8()}")
      }
    }
  }

  @Throws(IOException::class)
  fun nextFrame(
    requireSettings: Boolean,
    handler: Handler,
  ): Boolean {
    try {
      source.require(9) // Frame header size.

      var path = "<:path omitted>"
      var readBody = true
      for ((name, value) in streamHeaders) {
        if (name == Header.TARGET_METHOD_UTF8) {
          method = value
        } else if (name == Header.TARGET_PATH_UTF8) {
          path = value
        } else if (protocol === Protocol.HTTP_2 || protocol === Protocol.H2_PRIOR_KNOWLEDGE) {
          httpHeaders.add(name, value)
        } else {

    val scheme: String = challenge.scheme
    val authParams: Map<String?, String> = challenge.authParams
    val realm: String? = challenge.realm
    val charset: Charset = challenge.charset
    val utf8: Challenge = challenge.withCharset(Charsets.UTF_8)
  }

  @Test
  fun cipherSuite() {
    var cipherSuite: CipherSuite = CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256

    try {
      val requestHeaders = stream.takeHeaders()
      var path: String? = null
      var i = 0
      val size = requestHeaders.size
      while (i < size) {
        if (requestHeaders.name(i) == Header.TARGET_PATH_UTF8) {
          path = requestHeaders.value(i)
          break
        }
        i++
      }
      if (path == null) {
        // TODO: send bad request error
        throw AssertionError()
      }

HSPLokio/ByteString;->rangeEquals(ILokio/ByteString;II)Z
HSPLokio/ByteString;->rangeEquals(I[BII)Z
HSPLokio/ByteString;->startsWith(Lokio/ByteString;)Z
HSPLokio/ByteString;->toAsciiLowercase()Lokio/ByteString;
HSPLokio/ByteString;->utf8()Ljava/lang/String;
HSPLokio/ByteString;->write$okio(Lokio/Buffer;II)V
HSPLokio/FileSystem;-><clinit>()V
HSPLokio/FileSystem;-><init>()V
HSPLokio/ForwardingFileSystem;-><init>(Lokio/FileSystem;)V

    peer.acceptFrame() // SYN_STREAM
    peer.acceptFrame() // PING
    peer.sendFrame()
      .headers(false, 3, headerEntries(Header.RESPONSE_STATUS_UTF8, "HTTP/1.1 100"))
    peer.sendFrame()
      .headers(false, 3, headerEntries(Header.RESPONSE_STATUS_UTF8, "HTTP/1.1 200"))
    peer.sendFrame().ping(true, Http2Connection.AWAIT_PING, 0)
    peer.play()

    // Play it back.
    val connection = connect(peer)

    for (i in 0 until name.size) {
      if (name[i] in 'A'.code.toByte()..'Z'.code.toByte()) {
        throw IOException("PROTOCOL_ERROR response malformed: mixed case name: ${name.utf8()}")
      }
    }
    return name
  }