val allowInsecure: Boolean by option("-k", "--insecure", help = "Allow connections to SSL sites without certs").flag()

  val showHeaders: Boolean by option("-i", "--include", help = "Include protocol headers in the output").flag()

  val showHttp2Frames: Boolean by option("--frames", help = "Log HTTP/2 frames to STDERR").flag()

 *  Fix: Honor `RequestBody.isOneShot()` in `HttpLoggingInterceptor`.


## Version 4.2.2

_2019-10-06_

 *  Fix: When closing a canceled HTTP/2 stream, don't send the `END_STREAM` flag. This could cause
    the server to incorrectly interpret the stream as having completed normally. This is most useful
    when a request body needs to cancel its own call.


## Version 4.2.1

_2019-10-02_

  ) {
    this.withLock {
      if (closed) throw IOException("closed")
      var flags = FLAG_NONE
      if (outFinished) flags = flags or FLAG_END_STREAM
      dataFrame(streamId, flags, source, byteCount)
    }
  }

  @Throws(IOException::class)
  fun dataFrame(
    streamId: Int,
    flags: Int,
    buffer: Buffer?,
    byteCount: Int,
  ) {
    frameHeader(

import okhttp3.internal.http2.Http2.CONNECTION_PREFACE
import okhttp3.internal.http2.Http2.FLAG_ACK
import okhttp3.internal.http2.Http2.FLAG_COMPRESSED
import okhttp3.internal.http2.Http2.FLAG_END_HEADERS
import okhttp3.internal.http2.Http2.FLAG_END_STREAM
import okhttp3.internal.http2.Http2.FLAG_PADDED
import okhttp3.internal.http2.Http2.FLAG_PRIORITY
import okhttp3.internal.http2.Http2.INITIAL_MAX_FRAME_SIZE

    data.write("ca00".decodeHex()) // Empty pong, flag 1 set.
    assertFailsWith<ProtocolException> {
      clientReader.processNextFrame()
    }.also { expected ->
      assertThat(expected.message).isEqualTo("Unexpected rsv1 flag")
    }
  }

  @Test fun reservedFlag1IsUnsupportedForControlFrames() {
    data.write("ca00".decodeHex()) // Empty pong, flag 1 set.
    assertFailsWith<ProtocolException> {

 * Settings describe characteristics of the sending peer, which are used by the receiving peer.
 * Settings are [connection][Http2Connection] scoped.
 */
class Settings {
  /** Bitfield of which flags that values. */
  private var set: Int = 0

  /** Flag values. */
  private val values = IntArray(COUNT)

  /** Returns -1 if unset. */
  val headerTableSize: Int
    get() {
      val bit = 1 shl HEADER_TABLE_SIZE

   */

  /** Byte 0 flag for whether this is the final fragment in a message. */
  internal const val B0_FLAG_FIN = 128

  /** Byte 0 reserved flag 1. Must be 0 unless negotiated otherwise. */
  internal const val B0_FLAG_RSV1 = 64

  /** Byte 0 reserved flag 2. Must be 0 unless negotiated otherwise. */
  internal const val B0_FLAG_RSV2 = 32

  /** Byte 0 reserved flag 3. Must be 0 unless negotiated otherwise. */

    FLAGS[FLAG_PADDED] = "PADDED"
    for (prefixFlag in prefixFlags) {
      FLAGS[prefixFlag or FLAG_PADDED] = FLAGS[prefixFlag] + "|PADDED"
    }

    FLAGS[FLAG_END_HEADERS] = "END_HEADERS" // Same as END_PUSH_PROMISE.
    FLAGS[FLAG_PRIORITY] = "PRIORITY" // Same as FLAG_COMPRESSED.
    FLAGS[FLAG_END_HEADERS or FLAG_PRIORITY] = "END_HEADERS|PRIORITY" // Only valid on HEADERS.

import okhttp3.internal.toHexString
import okhttp3.internal.ws.WebSocketProtocol.B0_FLAG_FIN
import okhttp3.internal.ws.WebSocketProtocol.B0_FLAG_RSV1
import okhttp3.internal.ws.WebSocketProtocol.B0_FLAG_RSV2
import okhttp3.internal.ws.WebSocketProtocol.B0_FLAG_RSV3
import okhttp3.internal.ws.WebSocketProtocol.B0_MASK_OPCODE
import okhttp3.internal.ws.WebSocketProtocol.B1_FLAG_MASK
import okhttp3.internal.ws.WebSocketProtocol.B1_MASK_LENGTH

    return delegate!!.needClientAuth
  }

  override fun getWantClientAuth(): Boolean {
    return delegate!!.wantClientAuth
  }

  override fun setEnableSessionCreation(flag: Boolean) {
    delegate!!.enableSessionCreation = flag
  }

  override fun getEnableSessionCreation(): Boolean {
    return delegate!!.enableSessionCreation
  }

  override fun getSSLParameters(): SSLParameters {