public long getSequenceNumber() {
        return sequenceNumber;
    }

    /**
     * Sets the sequence number.
     *
     * @param sequenceNumber the sequence number
     */
    public void setSequenceNumber(long sequenceNumber) {
        this.sequenceNumber = sequenceNumber;
    }

    /**
     * Gets the context handle.
     *
     * @return the context handle
     */
    public byte[] getContextHandle() {

    public long getSequenceNumber() {
        return sequenceNumber;
    }

    /**
     * Sets the sequence number.
     *
     * @param sequenceNumber the sequence number
     */
    public void setSequenceNumber(long sequenceNumber) {
        this.sequenceNumber = sequenceNumber;
    }

    /**
     * Gets the return code.
     *
     * @return the return code
     */
    public int getReturnCode() {

    /**
     * Sets the sequence number for this heartbeat.
     * The sequence number should be incremented for each heartbeat request.
     *
     * @param sequenceNumber the sequence number
     */
    public void setSequenceNumber(long sequenceNumber) {
        this.sequenceNumber = sequenceNumber;
    }

    /**
     * Gets the sequence number.
     *
     * @return the sequence number
     */
    public long getSequenceNumber() {