Arrays.fill(bytez, (byte) 0x99);
    return bytez;
  }

  public void testToString() {
    byte[] data = new byte[] {127, -128, 5, -1, 14};
    assertEquals("7f8005ff0e", HashCode.fromBytes(data).toString());
    assertEquals("7f8005ff0e", base16().lowerCase().encode(data));
  }

  public void testHashCode_nulls() throws Exception {
    sanityTester().testNulls();
  }

            addMetadata(extractData, key, value);
        }
    }

    /**
     * Adds metadata to the extraction data if the value is not null.
     * @param extractData the extraction data
     * @param name the metadata name
     * @param value the metadata value
     */
    protected void addMetadata(final ExtractData extractData, final String name, final String value) {

    val data = Buffer().writeUtf8(content)
    val source: Source =
      object : Source {
        var closed = false

        override fun close() {
          closed = true
        }

        override fun read(
          sink: Buffer,
          byteCount: Long,
        ): Long {
          check(!closed)
          return data.read(sink, byteCount)
        }

Declare the **header parameters** that you need in a **Pydantic model**, and then declare the parameter as `Header`:

{* ../../docs_src/header_param_models/tutorial001_an_py310.py hl[9:14,18] *}

**FastAPI** will **extract** the data for **each field** from the **headers** in the request and give you the Pydantic model you defined.

## Check the Docs { #check-the-docs }

You can see the required headers in the docs UI at `/docs`:

     * Creates a new SitemapsResponseProcessor instance.
     */
    public SitemapsResponseProcessor() {
        super();
    }

    /**
     * Processes the given response data, extracting URLs from sitemaps.
     * @param responseData The response data.
     */
    @Override
    public void process(final ResponseData responseData) {
        final SitemapsHelper sitemapsHelper = crawlerContainer.getComponent("sitemapsHelper");

    public MsExcelExtractor() {
        super();
    }

    /**
     * Extracts text from the Excel input stream.
     * @param in The input stream.
     * @param params The parameters.
     * @return The extracted data.
     */
    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {
        if (in == null) {
            throw new CrawlerSystemException("The inputstream is null.");
        }

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3.survey.types

data class Client(
  val userAgent: String,
  val version: String,
  val platform: String? = null,
  val enabled: List<SuiteId> = listOf(),
  val supported: List<SuiteId> = listOf(),
) {
  val nameAndVersion: String

    String INDEXER_DATA_MAX_DOCUMENT_CACHE_SIZE = "indexer.data.max.document.cache.size";

    /** The key of the configuration. e.g. 1048576 */
    String INDEXER_DATA_MAX_DOCUMENT_REQUEST_SIZE = "indexer.data.max.document.request.size";

    /** The key of the configuration. e.g. 100 */
    String INDEXER_DATA_MAX_DELETE_CACHE_SIZE = "indexer.data.max.delete.cache.size";

    /** The key of the configuration. e.g. 10 */

      return HeldCertificate(keyPair, certificate)
    }

    private fun decodePkcs8(
      data: ByteString,
      keyAlgorithm: String,
    ): PrivateKey {
      try {
        val keyFactory = KeyFactory.getInstance(keyAlgorithm)
        return keyFactory.generatePrivate(PKCS8EncodedKeySpec(data.toByteArray()))
      } catch (e: GeneralSecurityException) {

    /** Info map key for data crawling execution time. */
    public static final String DATA_CRAWLING_EXEC_TIME = "DataCrawlExecTime";

    /** Info map key for data indexing execution time. */
    public static final String DATA_INDEX_EXEC_TIME = "DataIndexExecTime";

    /** Info map key for data index size. */
    public static final String DATA_INDEX_SIZE = "DataIndexSize";