return buf.toString();
        }

    }

    /**
     * Sets the encoding for the output.
     * @param outputEncoding The output encoding to set.
     */
    public void setOutputEncoding(final String outputEncoding) {
        this.outputEncoding = outputEncoding;
    }

    /**
     * Sets the output file extension.
     * @param outputExtension The output file extension to set.
     */

    /**
     * Gets the event type.
     *
     * @return the event type
     */
    public WitnessEventType getEventType() {
        return eventType;
    }

    /**
     * Sets the event type.
     *
     * @param eventType the event type
     */
    public void setEventType(WitnessEventType eventType) {
        this.eventType = eventType;
    }

    /**

    }

    /**
     * Sets the output encoding.
     * @param outputEncoding The output encoding.
     */
    public void setOutputEncoding(final String outputEncoding) {
        this.outputEncoding = outputEncoding;
    }

    /**
     * Sets whether to read content as text if extraction fails.

        this.fileId = fileId;
    }

    /**
     * Sets the information type for the set info operation
     *
     * @param infoType
     *            the infoType to set
     */
    public void setInfoType(final byte infoType) {
        this.infoType = infoType;
    }

    /**
     * Sets the file information class for the set info operation
     *
     * @param fileInfoClass

Se você acessar a documentação da API, verá que ela tem os **schemas** para os dados a serem enviados nas requisições e recebidos nas respostas:

<img src="/img/tutorial/generate-clients/image01.png">

Você pode ver esses schemas porque eles foram declarados com os modelos no app.

Essas informações estão disponíveis no **OpenAPI schema** do app e são mostradas na documentação da API (pelo Swagger UI).

   * @param elements expected contents of {@link #container}
   */
  protected final void expectContents(E... elements) {
    expectContents(asList(elements));
  }

  /**
   * Asserts that the collection under test contains exactly the given elements, respecting
   * cardinality but not order. Subclasses may override this method to provide stronger assertions,

        return id;
    }

    /**
     * Sets the ID.
     * @param id The ID.
     */
    public void setId(final String id) {
        this.id = id;
    }

    /**
     * Returns the session ID.
     * @return The session ID.
     */
    public String getSessionId() {
        return sessionId;
    }

    /**
     * Sets the session ID.
     * @param sessionId The session ID.
     */

        super(client, new PopularWordsRequest());
    }

    /**
     * Sets the index for the request.
     * @param index The index name.
     * @return This builder instance.
     */
    public PopularWordsRequestBuilder setIndex(final String index) {
        request.setIndex(index);
        return this;
    }

    /**
     * Sets the size of results for the request.
     * @param size The size.

    }

    /**
     * Sets the server address.
     * @param server The server address.
     */
    public void setServer(final String server) {
        this.server = server;
    }

    /**
     * Returns the port number.
     * @return The port number.
     */
    public int getPort() {
        return port;
    }

    /**
     * Sets the port number.

    /**
     * Initializes the query field configuration by loading field mappings from FessConfig.
     * This method is called after dependency injection is complete.
     * It sets up response fields, search fields, facet fields, sort fields, and other
     * field configurations based on the application configuration.
     */
    @PostConstruct
    public void init() {