import okhttp3.Request

interface EventSource {
  /** Returns the original request that initiated this event source. */
  fun request(): Request

  /**
   * Immediately and violently release resources held by this event source. This does nothing if
   * the event source has already been closed or canceled.
   */
  fun cancel()

  fun interface Factory {
    /**

  override fun clone(): Call = RealCall(client, originalRequest, forWebSocket)

  override fun request(): Request = originalRequest

  /**
   * Immediately closes the socket connection if it's currently held. Use this to interrupt an
   * in-flight request from any thread. It's the caller's responsibility to close the request body
   * and response body streams; otherwise resources may be leaked.
   *

#### Http2Connection

This lock guards internal state of each connection. This lock is never held for blocking operations. That means that we acquire the lock, read or write a few fields and release the lock. No I/O and no application-layer callbacks.

#### Http2Stream

    }
  }

  private fun pkcs1Bytes(): ByteString {
    val decoded = CertificateAdapters.privateKeyInfo.fromDer(keyPair.private.encoded.toByteString())
    return decoded.privateKey
  }

  /** Build a held certificate with reasonable defaults. */
  class Builder {
    private var notBefore = -1L
    private var notAfter = -1L
    private var commonName: String? = null
    private var organizationalUnit: String? = null

 *
 * Use [INSTANCE] for a task runner that uses daemon threads. There is not currently a shared
 * instance for non-daemon threads.
 *
 * The task runner is also responsible for releasing held threads when the library is unloaded.
 * This is for the benefit of container environments that implement code unloading.
 *
 * Most applications should share a process-wide [TaskRunner] and use queues for per-client work.
 */

    closing it doesn't also close the underlying stream. We had a bug where
    OkHttp would attempt to reuse a connection but couldn't because it was still
    held by a prior request.
 *  Fix: Ensure network interceptors always have access to the underlying
    connection.
 *  Fix: Use `X509TrustManagerExtensions` on Android 17+.

    assertThat(server.takeRequest().sequenceNumber).isEqualTo(1)
    assertThat(server.takeRequest().sequenceNumber).isEqualTo(0)

    // Let the first request proceed. It should discard the the held HTTP/2 connection and get a new
    // one.
    latch.countDown()
    val response3 = responses.take()
    assertThat(response3).isEqualTo("ABC")
    assertThat(server.takeRequest().sequenceNumber).isEqualTo(1)

 * that they own the hostnames that they represent. Server authentication is required.
 *
 * To perform server authentication:
 *
 *  * The server's handshake certificates must have a [held certificate][HeldCertificate] (a
 *    certificate and its private key). The certificate's subject alternative names must match the
 *    server's hostname. The server must also have is a (possibly-empty) chain of intermediate

  /** Used for writes, pings, and close timeouts. */
  private var taskQueue = taskRunner.newQueue()

  /** Names this web socket for observability and debugging. */
  private var name: String? = null

  /** The streams held by this web socket. This is closed when both reader and writer are closed. */
  private var streams: Streams? = null

  /** Outgoing pongs in the order they should be written. */
  private val pongQueue = ArrayDeque<ByteString>()

 *  Fix: Don't interpret trailers as headers after an HTTP/100 response. This was a bug only when
    the HTTP response body itself is empty.
 *  Fix: Don't crash when a fast fallback call has both a deferred connection and a held connection.
 *  Fix: `OkHttpClient` no longer implements `Cloneable`. It never should have; the class is
    immutable. This is left over from OkHttp 2.x (!) when that class was mutable. We're using the