Então:

```Python
q: str | None = Query(default=None)
```

...torna o parâmetro opcional, com um valor padrão de `None`, o mesmo que:


```Python
q: str | None = None

    /** Configuration key for Entra ID default groups. */
    protected static final String ENTRAID_DEFAULT_GROUPS = "entraid.default.groups";

    /** Configuration key for Entra ID default roles. */
    protected static final String ENTRAID_DEFAULT_ROLES = "entraid.default.roles";

    // Legacy configuration keys for backward compatibility (Azure AD)

    /**  By default, the Mojo is inherited */
    private boolean inheritedByDefault = true;

    /**  By default, the Mojo cannot be invoked directly */
    private boolean directInvocationOnly = false;

    /**  By default, the Mojo don't need reports to run */
    private boolean requiresReports = false;

    /**
     * By default, mojos are not threadsafe
     * @since 3.0-beta-2

        private final long initialDelayMs;
        private final long maxDelayMs;
        private final double backoffMultiplier;
        private final boolean exponentialBackoff;

        public static final RetryPolicy DEFAULT = new RetryPolicy(3, 1000, 30000, 2.0, true);
        public static final RetryPolicy AGGRESSIVE = new RetryPolicy(5, 500, 60000, 1.5, true);

 * this case, you should override {@code get()} as well.
 *
 * <p><b>{@code default} method warning:</b> This class does <i>not</i> forward calls to {@code
 * default} methods. Instead, it inherits their default implementations. When those implementations
 * invoke methods, they invoke methods on the {@code ForwardingFluentFuture}.
 *
 * <h3>Extension</h3>
 *

    public boolean hasDefaultCredentials() {
        return this.getDefaultCredentials() != null && !this.getDefaultCredentials().isAnonymous();
    }

    /**
     * Gets the default credentials for this context.
     *
     * @return the default credentials for this context
     */
    protected abstract Credentials getDefaultCredentials();

    /**
     * {@inheritDoc}
     *

    @Test
    @DisplayName("Default constructor should create exception with null message and cause")
    void testDefaultConstructor() {
        // Given & When
        CIFSUnsupportedCryptoException exception = new CIFSUnsupportedCryptoException();

        // Then
        assertNull(exception.getMessage(), "Default constructor should have null message");

Таким чином:

```Python
q: str | None = Query(default=None)
```

...робить параметр необов’язковим зі значенням за замовчуванням `None`, що еквівалентно:

```Python

import org.apache.maven.api.services.LifecycleRegistry;
import org.apache.maven.api.services.PackagingRegistry;
import org.apache.maven.impl.model.DefaultLifecycleBindingsInjector;

import static org.apache.maven.api.Lifecycle.DEFAULT;

@Singleton
@Named
@Priority(5)
@Deprecated
public class EmptyLifecycleBindingsInjector extends DefaultLifecycleBindingsInjector {

    private static LifecycleRegistry lifecycleRegistry;

fi

mc cp /etc/hosts myminio1/multi-key-poc/hosts --enc-kms "myminio1/multi-key-poc/hosts=minio-default-key"
ret=$?
if [ $ret -ne 0 ]; then
	echo "BUG: PutObject to bucket: multi-key-poc with valid sse-kms should succeed. Failed"
	exit 1
fi

mc cp /etc/issue myminio1/multi-key-poc/issue --enc-kms "myminio1/multi-key-poc/issue=minio-default-key-xxx" | grep "Insufficient permissions to access this path"
ret=$?
if [ $ret -eq 0 ]; then