* Numbers (`int`, `float`) with min and max values, etc.

* Validation for more exotic types, like:
    * URL.
    * Email.
    * UUID.
    * ...and others.

All the validation is handled by the well-established and robust **Pydantic**.

### Security and authentication { #security-and-authentication }

Security and authentication integrated. Without any compromise with databases or data models.

                     * We explicitly set uid to 0 here to prevent a new
                     * SMB_COM_SESSION_SETUP_ANDX from having it's uid set to an
                     * old value when the session is re-established. Otherwise a
                     * "The parameter is incorrect" error can occur.
                     */
                    this.uid = 0;

                    if (trans.isSMB2()) {

  @get:JvmName("dispatcher")
  val dispatcher: Dispatcher = builder.dispatcher

  /**
   * Returns an immutable list of interceptors that observe the full span of each call: from before
   * the connection is established (if any) until after the response source is selected (either the
   * origin server, cache, or both).
   */
  @get:JvmName("interceptors")
  val interceptors: List<Interceptor> =

   * proceed normally. The connection will also proceed normally if the client presents no
   * certificate at all! But if the client presents an untrusted certificate the handshake
   * will fail and no connection will be established.
   */
  public fun requestClientAuth() {
    this.clientAuth = CLIENT_AUTH_REQUESTED
  }

  /**
   * Configure the server to [need client auth][SSLSocket.setNeedClientAuth]. If the

        }

        return needsRotation;
    }

    /**
     * Reset key rotation tracking after new keys are established
     */
    public void resetKeyRotationTracking() {
        bytesEncrypted.set(0);
        encryptionStartTime = System.currentTimeMillis();
        log.debug("Key rotation tracking reset");
    }

    duplex request bodies. Such interceptors should check `RequestBody.isDuplex()` and avoid
    accessing the request body when it is.

    Duplex calls require HTTP/2. If HTTP/1 is established instead the duplex call will fail. The
    most common use of duplex calls is [gRPC][grpc_http2].

 *  New: Prevent OkHttp from retransmitting a request body by overriding `RequestBody.isOneShot()`.

            }
            switch (sbuf[0] & 0xFF) {
            case SessionServicePacket.POSITIVE_SESSION_RESPONSE:
                if (LogStream.level >= 4) {
                    log.println("session established ok with " + address);
                }
                return;
            case SessionServicePacket.NEGATIVE_SESSION_RESPONSE:
                final int errorCode = in.read() & 0xFF;

   * from the remote peer. Existing streams are not impacted. This is intended to permit an endpoint
   * to gracefully stop accepting new requests without harming previously established streams.
   */
  @Throws(IOException::class)
  fun shutdown(statusCode: ErrorCode) {
    writer.withLock {
      val lastGoodStreamId: Int
      withLock {
        if (isShutdown) {
          return

    setUp(protocol)
    server.enqueue(MockResponse(body = "abc"))
    server.enqueue(MockResponse(body = "def"))

    // Disconnect before the stream is created. A connection is still established!
    val call1 = client.newCall(Request(server.url("/")))
    val response = call1.execute()
    call1.cancel()

    // That connection is pooled, and it works.

            }
            switch (this.sbuf[0] & 0xFF) {
            case SessionServicePacket.POSITIVE_SESSION_RESPONSE:
                if (log.isDebugEnabled()) {
                    log.debug("session established ok with " + this.address);
                }
                return;
            case SessionServicePacket.NEGATIVE_SESSION_RESPONSE:
                final int errorCode = this.in.read() & 0xFF;