@Min(-1)
    @Max(10000)
    @ValidateTypeFailure
    public Integer failureCountThreshold;

    /**
     * Enable or disable popular word tracking and display.
     * When enabled, frequently searched terms are tracked and displayed.
     */
    @Size(max = 10)
    public String popularWord;

    /**
     * Character encoding to use for CSV file exports.

    /** The key of the message: Label */
    public static final String LABELS_TARGET_LABEL = "{labels.targetLabel}";

    /** The key of the message: Term */
    public static final String LABELS_TERM = "{labels.term}";

    /** The key of the message: Fields */
    public static final String LABELS_FIELDS = "{labels.fields}";

    /** The key of the message: Extended Query */

     * comment: Whether to remove duplicate terms in documents.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getCrawlerDocumentDuplicateTermRemoved();

    /**
     * Is the property for the key 'crawler.document.duplicate.term.removed' true? <br>
     * The value is, e.g. false <br>
     * comment: Whether to remove duplicate terms in documents.