table, the facility still operates, and performs whatever part of
    its purpose remains meaningful.

    (For example, a function in a library to compute square roots has
    a purpose that is entirely well-defined independent of the
    application.  Therefore, Subsection 2d requires that any
    application-supplied function or table used by this function must
    be optional: if the application does not supply it, the square

import java.util.Set;
import org.jspecify.annotations.NullUnmarked;
import org.junit.After;
import org.junit.Test;

/**
 * Abstract base class for testing undirected {@link Network} implementations defined in this
 * package.
 */
@NullUnmarked
public abstract class AbstractStandardUndirectedNetworkTest extends AbstractNetworkTest {
  private static final EndpointPair<Integer> ENDPOINTS_N1N2 = EndpointPair.ordered(N1, N2);

    /**
     * Creates a derived session using the given local repository.
     *
     * @param localRepository the new local repository
     * @return the derived session
     * @throws NullPointerException if {@code localRepository} is null
     */
    @Nonnull
    Session withLocalRepository(@Nonnull LocalRepository localRepository);

    /**
     * Creates a derived session using the given remote repositories.

   * preferred assignment.)
   *
   * @since 8.0
   */
  public static final byte DC1 = 17; // aka XON

  /**
   * Transmission On: Although originally defined as DC1, this ASCII control character is now better
   * known as the XON code used for software flow control in serial communications. The main use is

	UserDefined         map[string]string   // only set in case of POST/PUT operations
	ObjectAttributes    map[string]struct{} // Attribute tags defined by the users for the GetObjectAttributes request
	MaxParts            int                 // used in GetObjectAttributes. Signals how many parts we should return

      return null // If we already failed with these credentials, don't retry.
     }
    ```

    You may also skip the retry when you’ve hit an application-defined attempt limit:

    ```kotlin
    if (response.responseCount >= 3) {
      return null // If we've failed 3 times, give up.
    }
    ```

    This above code relies on this `responseCount` extension val:

}

// Check if the directive REPLACE is requested.
func isDirectiveReplace(value string) bool {
	return value == replaceDirective
}

// userMetadataKeyPrefixes contains the prefixes of used-defined metadata keys.
// All values stored with a key starting with one of the following prefixes
// must be extracted from the header.
var userMetadataKeyPrefixes = []string{
	"x-amz-meta-",
	"x-minio-meta-",
}

     *
     * @return the node's text value, or {@code null} if none exists
     */
    @Nullable
    String value();

    /**
     * Returns an immutable map of all attributes defined on this XML node.
     *
     * @return map of attribute names to values, never {@code null}
     */
    @Nonnull
    Map<String, String> attributes();

    /**

As an example, let's take this function:

{* ../../docs_src/python_types/tutorial009c.py hl[1,4] *}

The parameter `name` is defined as `Optional[str]`, but it is **not optional**, you cannot call the function without the parameter:

```Python
say_hi()  # Oh, no, this throws an error! 😱
```

            These dependencies are used to construct a classpath for your
            project during the build process. They are automatically downloaded from the
            repositories defined in this project.

            @see <a href="https://maven.apache.org/guides/introduction/introduction-to-dependency-mechanism.html">Dependency mechanism</a>
          </description>
          <association>