// converted to int they correspond to the rune size that was read.
type readOp int8

// Don't use iota for these, as the values need to correspond with the
// names and comments, which is easier to see when being explicit.
const (
	opRead      readOp = -1 // Any other read operation.
	opInvalid   readOp = 0  // Non-read operation.
	opReadRune1 readOp = 1  // Read rune of size 1.
	opReadRune2 readOp = 2  // Read rune of size 2.

  // unless the pod spec specifically drops the capability.  You may not list a capability in both
  // defaultAddCapabilities and requiredDropCapabilities. Capabilities added here are implicitly
  // allowed, and need not be included in the allowedCapabilities list.
  // +optional
  repeated string defaultAddCapabilities = 2;

      }
    }

    /** The listeners to notify during a state transition. */
    final ListenerCallQueue<Listener> listeners = new ListenerCallQueue<>();

    /**
     * It is implicitly assumed that all the services are NEW and that they will all remain NEW
     * until all the Listeners are installed and {@link #markReady()} is called. It is our caller's

      }
    }

    /** The listeners to notify during a state transition. */
    final ListenerCallQueue<Listener> listeners = new ListenerCallQueue<>();

    /**
     * It is implicitly assumed that all the services are NEW and that they will all remain NEW
     * until all the Listeners are installed and {@link #markReady()} is called. It is our caller's

 *       running on it. This class, by contrast, does not expose an {@code Executor} API.)
 * </ul>
 *
 * <p>If you don't need the features of this class, you may prefer {@code newSequentialExecutor} for
 * its simplicity and ability to accommodate interruption.
 *
 * @since 26.0
 */
@ElementTypesAreNonnullByDefault
@J2ktIncompatible
public final class ExecutionSequencer {

  private ExecutionSequencer() {}

* No lugar, ✨ **use `Union[SomeType, None]`** ✨.

Ambos são equivalentes, e no final das contas, eles são o mesmo. Mas eu recomendaria o `Union` ao invés de `Optional` porque a palavra **Optional** parece implicar que o valor é opcional, quando na verdade significa "isso pode ser `None`", mesmo que ele não seja opcional e ainda seja obrigatório.

Eu penso que `Union[SomeType, None]` é mais explícito sobre o que ele significa.

    this(
        allowsNullKeys,
        allowsNullValues,
        supportsPut,
        supportsRemove,
        supportsClear,
        supportsRemove);
  }

  /** Constructor with an explicit {@code supportsIteratorRemove} parameter. */
  protected MapInterfaceTest(
      boolean allowsNullKeys,
      boolean allowsNullValues,
      boolean supportsPut,
      boolean supportsRemove,

  /**
   * Returns true if the given member is a method that overrides {@link Object#equals(Object)}.
   *
   * <p>The documentation for {@link Object#equals} says it should accept null, so don't require an
   * explicit {@code @Nullable} annotation (see <a
   * href="https://github.com/google/guava/issues/1819">#1819</a>).
   *
   * <p>It is not necessary to consider visibility, return type, or type parameter declarations. The

	if errCode != ErrNone {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(errCode), r.URL)
		return
	}

	if len(fanOutEntries) > 0 {
		// Once signature is validated, check if the user has
		// explicit permissions for the user.
		if !globalIAMSys.IsAllowed(policy.Args{
			AccountName:     cred.AccessKey,
			Groups:          cred.Groups,
			Action:          policy.PutObjectFanOutAction,

   * iterable is empty.
   *
   * <p><b>Warning:</b> Typical uses of the resulting iterator may produce an infinite loop. You
   * should use an explicit {@code break} or be certain that you will eventually remove all the
   * elements.
   *
   * <p><b>{@code Stream} equivalent:</b> if the source iterable has only a single element {@code