{* ../../docs_src/response_model/tutorial004_py310.py hl[9,11:12] *}

* `description: Union[str, None] = None` (or `str | None = None` in Python 3.10) has a default of `None`.
* `tax: float = 10.5` has a default of `10.5`.
* `tags: List[str] = []` has a default of an empty list: `[]`.

but you might want to omit them from the result if they were not actually stored.

## Dependencies

### Added
_Nothing has changed._

### Changed
_Nothing has changed._

### Removed
_Nothing has changed._



# v1.30.13


## Downloads for v1.30.13



### Source Code

filename | sha512 hash
-------- | -----------

		if !ok {
			t.Fatal(errAPI, "error code is not defined in the API error code table")
		}
		if errCode.Code == "" {
			t.Fatal(errAPI, "error code has an empty XML code")
		}
		if errCode.HTTPStatusCode == 0 {
			t.Fatal(errAPI, "error code has a zero HTTP status code")
		}
	}

            assertThat(Thread.currentThread().isInterrupted()).isFalse();
          }
        });

    // Run these together.
    fakePool.runAll();

    // Check that this thread has been marked as interrupted again now that the thread has been
    // returned by SequentialExecutor. Clear the bit while checking so that the test doesn't hose
    // JUnit or some other test case.
    assertThat(Thread.interrupted()).isTrue();
  }

   * space character.
   *
   * <p>Not that it is allowed, but not necessarily desirable to specify {@code %} as a safe
   * character. This has the effect of creating an escaper which has no well-defined inverse but it
   * can be useful when escaping additional characters.
   *
   * @param safeChars a non-null string specifying additional safe characters for this escaper (the

 * under the License.
 */
package org.apache.maven.api;

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Immutable;

/**
 * A {@link Dependency} that has been resolved, i.e. downloaded to the local repository.
 *
 * @since 4.0.0
 */
@Experimental
@Immutable

func (s *Singleton[T]) GetNonBlocking() *T {
	select {
	case <-s.set:
		return s.v
	default:
		return nil
	}
}

// IsSet will return whether the singleton has been set.
func (s *Singleton[T]) IsSet() bool {
	select {
	case <-s.set:
		return true
	default:
		return false
	}
}

// Set the value and unblock all Get requests.

   * value for which {@link Comparable#compareTo(Object)} never returns a positive value for any
   * input of type {@code C}.
   *
   * <p>The default implementation throws {@code NoSuchElementException}.
   *
   * @return the minimum value of type {@code C}; never null
   * @throws NoSuchElementException if the type has no (practical) minimum value; for example,

{
    "description": "TensorFlow is an end-to-end open source platform for machine learning. It has a comprehensive, flexible ecosystem of tools, libraries, and community resources that lets researchers push the state-of-the-art in ML and developers easily build and deploy ML-powered applications.",
    "license": "Apache-2.0",
    "title": "TensorFlow",
    "upload_type": "software",
    "creators": [
        {
            "name": "TensorFlow Developers"
        }

   */
  public abstract T or(T defaultValue);

  /**
   * Returns this {@code Optional} if it has a value present; {@code secondChoice} otherwise.
   *
   * <p><b>Comparison to {@code java.util.Optional}:</b> this method has no equivalent in Java 8's
   * {@code Optional} class; write {@code thisOptional.isPresent() ? thisOptional : secondChoice}
   * instead.
   */