if (StringUtil.isBlank(key)) {
            throw new CrawlerSystemException("Extractor key (MIME type) is null or blank. Cannot register extractor without a valid key.");
        }
        if (extractor == null) {
            throw new CrawlerSystemException("Extractor instance is null. Cannot register null extractor.");
        }
        if (extractorMap.containsKey(key)) {

                            problems,
                            Severity.ERROR,
                            "pluginGroups.pluginGroup[" + i + "]",
                            null,
                            "must denote a valid group id and match the pattern " + ID);
                }
            }
        }

        List<Server> servers = settings.getServers();

        if (servers != null) {

  }

  /**
   * This is adapted from the regex suggested by {@link Double#valueOf(String)} for prevalidating
   * inputs. All valid inputs must pass this regex, but it's semantically fine if not all inputs
   * that pass this regex are valid -- only a performance hit is incurred, not a semantics bug.
   */
  @GwtIncompatible // regular expressions
  static final
  java.util.regex.Pattern

    /**
     * Flag to return only a single directory entry.
     */
    public static final byte SMB2_RETURN_SINGLE_ENTRY = 0x2;

    /**
     * Flag indicating that the file index field contains a valid index.
     */
    public static final byte SMB2_INDEX_SPECIFIED = 0x4;

    /**
     * Flag to reopen the directory enumeration.
     */
    public static final byte SMB2_REOPEN = 0x10;

        return crawlingConfig.getConfigParameterMap(config);
    }

    /**
     * Validates if the given URL string is a valid URL.
     *
     * @param urlStr the URL string to validate
     * @return true if the URL is valid, false otherwise
     */
    protected boolean isValidUrl(final String urlStr) {
        if (StringUtil.isBlank(urlStr)) {
            return false;
        }

			},
		},
		// inputParts - 3.
		// Case with valid parts,but parts are unsorted.
		// Part size greater than 5 MiB.
		{
			[]CompletePart{
				{ETag: validPartMD5, PartNumber: 6},
				{ETag: validPartMD5, PartNumber: 5},
			},
		},
		// inputParts - 4.
		// Case with valid part.
		// Part size greater than 5 MiB.
		{
			[]CompletePart{

	globalAutoEncryption = crypto.LookupAutoEncryption() // Enable auto-encryption if enabled
	if globalAutoEncryption && GlobalKMS == nil {
		logger.Fatal(errors.New("no KMS configured"), "MINIO_KMS_AUTO_ENCRYPTION requires a valid KMS configuration")
	}

	transport := NewHTTPTransport()

	bootstrapTraceMsg("initialize the event notification targets")
	globalNotifyTargetList, err = notify.FetchEnabledTargets(GlobalContext, s, transport)

    void setUp() {
        buffer = new byte[128];
    }

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create lock with valid parameters")
        void testConstructorWithValidParameters() {
            long offset = 1024L;
            long length = 2048L;
            int flags = Smb2Lock.SMB2_LOCKFLAG_EXCLUSIVE_LOCK;

        HMACT64 hmac = new HMACT64(key);
        hmac.engineUpdate(data, 0, data.length);
        byte[] result = hmac.engineDigest();

        // Verify it produces a valid MD5 hash (16 bytes)
        assertNotNull(result);
        assertEquals(16, result.length);

        // Calculate the same using manual HMACT64 algorithm

You can also declare a response using a plain arbitrary `dict`, declaring just the type of the keys and values, without using a Pydantic model.

This is useful if you don't know the valid field/attribute names (that would be needed for a Pydantic model) beforehand.

In this case, you can use `typing.Dict` (or just `dict` in Python 3.9 and above):

{* ../../docs_src/extra_models/tutorial005_py39.py hl[6] *}