/** HTTP/2 only. */
    fun ackSettings()

    /**
     * Read a connection-level ping from the peer. `ack` indicates this is a reply. The data
     * in `payload1` and `payload2` opaque binary, and there are no rules on the content.
     */
    fun ping(
      ack: Boolean,
      payload1: Int,
      payload2: Int,
    )

    /**
     * The peer tells us to stop creating streams. It is safe to replay streams with

    val executeAtNanos = System.nanoTime()
    assertFailsWith<StreamResetException> {
      call.execute()
    }.also { expected ->
      assertThat(expected.message).isEqualTo(
        "stream was reset: PROTOCOL_ERROR",
      )
    }
    val elapsedUntilFailure = System.nanoTime() - executeAtNanos
    assertThat(TimeUnit.NANOSECONDS.toMillis(elapsedUntilFailure).toDouble())
      .isCloseTo(1000.0, 250.0)

class HpackTest {
  private val bytesIn = Buffer()
  private var hpackReader: Hpack.Reader? = null
  private val bytesOut = Buffer()
  private var hpackWriter: Hpack.Writer? = null

  @BeforeEach
  fun reset() {
    hpackReader = newReader(bytesIn)
    hpackWriter = Hpack.Writer(4096, false, bytesOut)
  }

  /**
   * Variable-length quantity special cases strings which are longer than 127 bytes.  Values such as

      if (pos == limit) {
        // Empty path: keep the base path as-is.
        return
      }
      val c = input[pos]
      if (c == '/' || c == '\\') {
        // Absolute path: reset to the default "/".
        encodedPathSegments.clear()
        encodedPathSegments.add("")
        pos++
      } else {
        // Relative path: clear everything after the last '/'.

# no rules should be needed...

  /** Inflates [buffer] in place as described in RFC 7692 section 7.2.2. */
  @Throws(IOException::class)
  fun inflate(buffer: Buffer) {
    require(deflatedBytes.size == 0L)

    if (noContextTakeover) {
      inflater.reset()
    }

    deflatedBytes.writeAll(buffer)
    deflatedBytes.writeInt(OCTETS_TO_ADD_BEFORE_INFLATION)

    val totalBytesToRead = inflater.bytesRead + deflatedBytes.size

  /** Deflates [buffer] in place as described in RFC 7692 section 7.2.1. */
  @Throws(IOException::class)
  fun deflate(buffer: Buffer) {
    require(deflatedBytes.size == 0L)

    if (noContextTakeover) {
      deflater.reset()
    }

    deflaterSink.write(buffer, buffer.size)
    deflaterSink.flush()

    if (deflatedBytes.endsWith(EMPTY_DEFLATE_BLOCK)) {
      val newSize = deflatedBytes.size - LAST_OCTETS_COUNT_TO_REMOVE_AFTER_DEFLATION

    SocketPolicy.SHUTDOWN_OUTPUT_AT_END -> ShutdownOutputAtEnd
    SocketPolicy.STALL_SOCKET_AT_START -> StallSocketAtStart
    SocketPolicy.NO_RESPONSE -> NoResponse
    SocketPolicy.RESET_STREAM_AT_START -> ResetStreamAtStart(http2ErrorCode)
    else -> error("Unexpected SocketPolicy: $socketPolicy")
  }

    some calls to return nice error codes like `HTTP/1.1 429 Too Many Requests` instead of transport
    errors like `SocketException: Connection reset` and `StreamResetException: stream was reset:
    CANCEL`.
 *  New: Support OSGi metadata.
 *  Upgrade: [Okio 2.9.0][okio_2_9_0].

    ```kotlin
    implementation("com.squareup.okio:okio:2.9.0")
    ```

```kotlin
implementation("com.squareup.okhttp3:okhttp:4.12.0")
```

Snapshot builds are [available][snap]. [R8 and ProGuard][r8_proguard] rules are available.

Also, we have a [bill of materials (BOM)][bom] available to help you keep OkHttp artifacts up to date and be sure about version compatibility.

```kotlin
    dependencies {