* Do not instantiate.
     */
    protected WriterUtil() {
    }

    /**
     * Creates a {@link Writer} to output to a stream with the specified encoding.
     *
     * @param os the stream (must not be {@literal null})
     * @param encoding the encoding (must not be {@literal null} or empty)
     * @return a {@link Writer} to output to the stream
     */

public interface ArtifactInstaller extends Service {
    /**
     * @param request {@link ArtifactInstallerRequest}
     * @throws ArtifactInstallerException in case of an error
     * @throws IllegalArgumentException in case {@code request} is {@code null}
     */
    void install(@Nonnull ArtifactInstallerRequest request);

    /**
     * @param session the repository session
     * @param artifact the {@link ProducedArtifact} to install

@pytest.fixture(
    name="client",
    params=[
        pytest.param("tutorial001_02_py39"),
        pytest.param("tutorial001_02_py310", marks=needs_py310),
        pytest.param("tutorial001_02_an_py39"),
        pytest.param("tutorial001_02_an_py310", marks=needs_py310),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.request_files.{request.param}")

    client = TestClient(mod.app)

     *
     * @param sessionId the ID of the session for which the URL filter is being added
     * @param url the URL to be included in the filter list
     */
    void addIncludeUrlFilter(String sessionId, String url);

    /**
     * Adds a list of URLs to the include filter for a given session.
     *
     * @param sessionId the ID of the session for which the URLs should be included

    /**
     * Encodes this message into a byte array.
     *
     * @param dst the destination byte array
     * @param dstIndex the starting index in the destination array
     * @return message length
     */
    int encode(byte[] dst, int dstIndex);

    /**
     * Sets the signing digest for this message.
     *
     * @param digest the signing digest to set
     */
    void setDigest(SMBSigningDigest digest);

     *
     * @param message the error message
     * @param cause the underlying cause of this exception
     */
    public DataStoreException(final String message, final Throwable cause) {
        super(message, cause);
    }

    /**
     * Creates a new DataStoreException with the specified message.
     *
     * @param message the error message
     */

    }

    /**
     * Method setFileComment.
     *
     * @param fileComment a fileComment object.
     */
    public void setFileComment(String fileComment) {
        delegate.setFileComment(fileComment);
    } // -- void setFileComment( String )

    /**
     * Method setStringFormatter.
     *
     * @param stringFormatter
     */

    List<CharMappingItem> mappingItemList;

    /**
     * Constructs a new CharMappingFile instance.
     *
     * @param id the unique identifier for this mapping file
     * @param path the file path to the character mapping dictionary
     * @param timestamp the last modification timestamp of the file
     */
    public CharMappingFile(final String id, final String path, final Date timestamp) {

    }

    /**
     * Creates a new build summary for the specified project.
     *
     * @param project The project being summarized, must not be {@code null}.
     * @param execTime The exec time of the project in milliseconds.
     * @param wallTime The wall time of the project in milliseconds.
     * @param cause The cause of the build failure, may be {@code null}.
     */

    /** Total document number. */
    protected final long totalDocNum;

    /**
     * Constructor for ESSourceReader.
     * @param client The OpenSearch client.
     * @param settings The SuggestSettings instance.
     * @param indexName The name of the index to read from.
     */
    public ESSourceReader(final Client client, final SuggestSettings settings, final String indexName) {