val errorCodeInt = source.readInt()
    val errorCode =
      ErrorCode.fromHttp2(errorCodeInt) ?: throw IOException(
        "TYPE_RST_STREAM unexpected error code: $errorCodeInt",
      )
    handler.rstStream(streamId, errorCode)
  }

  @Throws(IOException::class)
  private fun readSettings(
    handler: Handler,
    length: Int,
    flags: Int,

    replaceWith = ReplaceWith(expression = "certificate"),
    level = DeprecationLevel.ERROR,
  )
  fun certificate(): X509Certificate = certificate

  @JvmName("-deprecated_keyPair")
  @Deprecated(
    message = "moved to val",
    replaceWith = ReplaceWith(expression = "keyPair"),
    level = DeprecationLevel.ERROR,
  )
  fun keyPair(): KeyPair = keyPair

  /**

      // timed out. e.g. if we weren't event able to grab the lock within the timeout we would never
      // even check the guard. I don't think we care too much about this use case but it could lead
      // to a confusing error message.
      throw new TimeoutException("Timed out waiting for " + this + " to reach the RUNNING state.");
    }
  }

  @Override
  public final void awaitTerminated() {

            if (logger.isDebugEnabled()) {
                logger.error("IndexUpdater is terminated.", e);
            } else if (logger.isInfoEnabled()) {
                logger.info("IndexUpdater is terminated.");
            }
            forceStop();
        } catch (final Throwable t) {
            if (ComponentUtil.available()) {
                logger.error("IndexUpdater is terminated.", t);

 */
@Deprecated(since = "4.0.0")
public interface ModelProblem {

    /**
     * The different severity levels for a problem, in decreasing order.
     */
    enum Severity {
        FATAL, //
        ERROR, //
        WARNING //
    }

    /**
     * Version
     */
    enum Version {
        // based on ModeBuildingResult.validationLevel
        BASE,
        V20,
        V30,
        V31,

        is KotlinClassMetadata.MultiFileClassFacade -> false
        is KotlinClassMetadata.SyntheticClass -> false
        is KotlinClassMetadata.Unknown -> false
        else -> error("Unsupported Kotlin metadata type '${this::class}'")
    }


private
fun hasClassAttribute(kmClassSupplier: Supplier<KmClass>, memberType: MemberType, jvmSignature: String, predicate: AttributePredicate): Boolean {

 * ExecutionException} when the exception thrown by a task is an unchecked exception. However, it
 * may also wrap a checked exception in some cases.
 *
 * <p>When wrapping an {@code Error} from another thread, prefer {@link ExecutionError}. When
 * wrapping a checked exception, prefer {@code ExecutionException}.
 *
 * @author Charles Fry
 * @since 10.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault

```Python hl_lines="1  11-21"
{!../../docs_src/security/tutorial007.py!}
```

👉 🔜 🎏:

```Python
if not (credentials.username == "stanleyjobson") or not (credentials.password == "swordfish"):
    # Return some error
    ...
```

✋️ ⚙️ `secrets.compare_digest()` ⚫️ 🔜 🔐 🛡 🆎 👊 🤙 "🕰 👊".

### ⏲ 👊

✋️ ⚫️❔ "⏲ 👊"❓

➡️ 🌈 👊 🔄 💭 🆔 & 🔐.

& 👫 📨 📨 ⏮️ 🆔 `johndoe` & 🔐 `love123`.

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

    "chunked".equals(header("Transfer-Encoding"), ignoreCase = true)
  ) {
    return true
  }

  return false
}

@Deprecated(
  message = "No longer supported",
  level = DeprecationLevel.ERROR,
  replaceWith = ReplaceWith(expression = "response.promisesBody()"),
)
fun hasBody(response: Response): Boolean {
  return response.promisesBody()