/**
   * If the graph is undirected, each unordered [node, otherNode] pair (except self-loops) will be
   * visited twice if there is an edge connecting them. To avoid returning duplicate {@link
   * EndpointPair}s, we keep track of the nodes that we have visited. When processing endpoint
   * pairs, we skip if the "other node" is in the visited set, as shown below:
   *
   * <pre>
   * Nodes = {N1, N2, N3, N4}
   *    N2           __

     * Returns the similar document hash.
     *
     * @return The similar document hash.
     */
    public abstract String getSimilarDocHash();

    /**
     * Returns the track total hits.
     *
     * @return The track total hits.
     */
    public String getTrackTotalHits() {
        return null;
    }

    /**
     * Returns the min score.
     *
     * @return The min score.

     */
    @Required
    @Size(max = 1000)
    public String id;

    /**
     * The username of the user who last updated this elevate word configuration.
     * Used for audit trail purposes to track who made changes.
     */
    @Size(max = 1000)
    public String updatedBy;

    /**
     * The timestamp when this elevate word configuration was last updated.

     */
    @Required
    @Size(max = 1000)
    public String id;

    /**
     * The username of the user who last updated this request header configuration.
     * Used for audit trail purposes to track who made changes.
     */
    @Size(max = 1000)
    public String updatedBy;

    /**
     * The timestamp when this request header configuration was last updated.

     */
    @Required
    @Size(max = 1000)
    public String id;

    /**
     * The username of the user who last updated this access token.
     * Used for audit trail purposes to track who made changes.
     */
    @Size(max = 1000)
    public String updatedBy;

    /**
     * The timestamp when this access token was last updated.
     * Stored as a long value representing milliseconds since epoch.

     */
    @Required
    @Size(max = 1000)
    public String id;

    /**
     * The username of the user who last updated this bad word entry.
     * Used for audit trail purposes to track who made changes.
     */
    @Size(max = 1000)
    public String updatedBy;

    /**
     * The timestamp when this bad word entry was last updated.
     * Stored as a long value representing milliseconds since epoch.

     */
    @Required
    @Size(max = 1000)
    public String id;

    /**
     * The username of the user who last updated this boost document configuration.
     * Used for audit trail purposes to track who made changes.
     */
    @Size(max = 1000)
    public String updatedBy;

    /**
     * The timestamp when this boost document configuration was last updated.

     */
    @Required
    @Size(max = 1000)
    public String id;

    /**
     * The username of the user who last updated this file authentication configuration.
     * Used for audit trail purposes to track who made changes.
     * Maximum length is 255 characters.
     */
    @Size(max = 255)
    public String updatedBy;

    /**
     * The timestamp when this file authentication configuration was last updated.

     */
    @Required
    @Size(max = 1000)
    public String id;

    /**
     * The username of the user who last updated this file configuration.
     * Used for audit trail purposes to track who made changes.
     */
    @Size(max = 1000)
    public String updatedBy;

    /**
     * The timestamp when this file configuration was last updated.

     */
    @Required
    @Size(max = 1000)
    public String id;

    /**
     * The username of the user who last updated this key match configuration.
     * Used for audit trail purposes to track who made changes.
     * Maximum length is 255 characters.
     */
    @Size(max = 255)
    public String updatedBy;

    /**
     * The timestamp when this key match configuration was last updated.