| Params               | Value                                          |
| :--                  | :--                                            |
| *Type*               | *String*                                       |
| *Length Constraints* | *Minimum length of 4. Maximum length of 2048.* |
| *Required*           | *Yes*                                          |

### Version

 */
public class HelpAction extends FessSearchAction {

    // ===================================================================================
    //                                                                            Constant
    //

    // ===================================================================================
    //                                                                           Attribute
    //

   * (Function<Object, E> & Serializable) o -> value}.
   *
   * @param value the constant value for the function to return
   * @return a function that always returns {@code value}
   */
  public static <E extends @Nullable Object> Function<@Nullable Object, E> constant(
      @ParametricNullness E value) {
    return new ConstantFunction<>(value);
  }

      replacements[c] = map.get(c).toCharArray();
    }
    return replacements;
  }

  // Immutable empty array for when there are no replacements.
  @SuppressWarnings("ConstantCaseForConstants") // An empty array is a constant.
  private static final char[][] EMPTY_REPLACEMENT_ARRAY = new char[0][0];

      } catch (NoSuchAlgorithmException e) {
        throw new AssertionError(e);
      }
    }

    HashFunction getHashFunction() {
      return hashFn;
    }
  }

  // Use a constant seed for all of the benchmarks to ensure apples to apples comparisons.
  private static final int RANDOM_SEED = new Random().nextInt();

  private byte[] testBytes;

  @BeforeExperiment
  void setUp() {

   * (Function<Object, E> & Serializable) o -> value}.
   *
   * @param value the constant value for the function to return
   * @return a function that always returns {@code value}
   */
  public static <E extends @Nullable Object> Function<@Nullable Object, E> constant(
      @ParametricNullness E value) {
    return new ConstantFunction<>(value);
  }

    knownTypes.put(mediaType, mediaType);
    return mediaType;
  }

  /*
   * The following constants are grouped by their type and ordered alphabetically by the constant
   * name within that type. The constant name should be a sensible identifier that is closest to the
   * "common name" of the media. This is often, but not necessarily the same as the subtype.
   *

## Number validations: greater than or equal { #number-validations-greater-than-or-equal }

With `Query` and `Path` (and others you'll see later) you can declare number constraints.

Here, with `ge=1`, `item_id` will need to be an integer number "`g`reater than or `e`qual" to `1`.

{* ../../docs_src/path_params_numeric_validations/tutorial004_an_py310.py hl[10] *}

        assertEquals(Smb2ChangeNotifyRequest.SMB2_WATCH_TREE, readFlags);
        assertEquals(0x0001, readFlags);
    }

    @Test
    @DisplayName("Should verify command constant in constructor")
    void testCommandConstant() throws Exception {
        // When
        Field commandField = ServerMessageBlock2.class.getDeclaredField("command");
        commandField.setAccessible(true);

    public CacheAction() {
        super();
    }

    // ===================================================================================
    //                                                                            Constant
    //
    private static final Logger logger = LogManager.getLogger(CacheAction.class);

    // ===================================================================================