Arguments.of(NbtException.ERR_SSN_SRVC, 99, "ERR_SSN_SRVC/Unknown error code: 99"), // Default case for session service

                // Default error class
                Arguments.of(999, 0, "unknown error class: 999"));
    }

    /**
     * Test the toString method to ensure it returns the expected string format.
     */

Таким образом:

```Python
q: Union[str, None] = Query(default=None)
```

...делает параметр необязательным со значением по умолчанию `None`, также как это делает:

```Python

 */
public class TermRangeQueryCommand extends QueryCommand {
    private static final Logger logger = LogManager.getLogger(TermRangeQueryCommand.class);

    /**
     * Default constructor for TermRangeQueryCommand.
     */
    public TermRangeQueryCommand() {
        super();
    }

    @Override
    protected String getQueryClassName() {

import jakarta.annotation.PostConstruct;

/**
 * Helper class for Open Search Description Document.
 */
public class OsddHelper {

    /**
     * Default constructor.
     */
    public OsddHelper() {
        // Default constructor
    }

    private static final Logger logger = LogManager.getLogger(OsddHelper.class);

    /** The OSDD file path. */
    protected String osddPath;

        assertEquals("pdf", fileTypeHelper.get("application/pdf"));
        assertEquals("text", fileTypeHelper.get("text/plain"));

        // Test non-existent mimetype returns default value
        assertEquals("others", fileTypeHelper.get("non/existent"));
    }

    public void test_get_withNullMimetype() {
        assertEquals("others", fileTypeHelper.get(null));
    }

	dialect := DB.Dialector.Name()
	switch dialect {
	case "mysql", "sqlserver":
		// these dialects do not support the "returning" clause
		return
	default:
		// This user struct will leverage the existing users table, but override
		// the Name field to default to null.
		type user struct {
			gorm.Model
			Name string `gorm:"default:null"`
		}
		u1 := user{}

		if results := DB.Create(&u1); results.Error != nil {

    public void setRequestType(final int requestType) {
        switch (requestType) {
            case REQUEST_PUT:
                break;
            case REQUEST_GET:
                break;
            default:
                throw new IllegalArgumentException("Illegal request type: " + requestType);
        }

        this.requestType = requestType;
    }

    /**
     * @return Returns the eventType.

And you can also declare body parameters as optional, by setting the default to `None`:

{* ../../docs_src/body_multiple_params/tutorial001_an_py310.py hl[18:20] *}

/// note

Notice that, in this case, the `item` that would be taken from the body is optional. As it has a `None` default value.

///

## Multiple body parameters { #multiple-body-parameters }

    protected String name;

    /**
     * Default constructor for creating a new rank fusion searcher instance.
     * This constructor initializes the searcher with default values.
     * The searcher name will be lazily initialized when first accessed.
     */
    public RankFusionSearcher() {
        // Default constructor - name will be initialized lazily
    }

    /**

        }
      }
    }
  }

  /**
   * Sets the default value for {@code type}, when dummy value for a parameter of the same type
   * needs to be created in order to invoke a method or constructor. The default value isn't used in
   * testing {@link Object#equals} because more than one sample instances are needed for testing
   * inequality.
   */