/**
     * Checks if the heartbeat was successful.
     *
     * @return true if successful
     */
    public boolean isSuccess() {
        return returnCode == 0;
    }

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

    /**
     * Sets the sequence number.
     *

    /**
     * Checks if the registration was successful.
     *
     * @return true if successful
     */
    public boolean isSuccess() {
        return returnCode == 0;
    }

    /**
     * Gets a human-readable error description.
     *
     * @return the error description
     */
    public String getError() {
        return error != null ? error : "Error code: " + returnCode;
    }

    /**

    }

    /**
     * Gets the bulk timeout.
     * @return The bulk timeout.
     */
    public String getBulkTimeout() {
        return bulkTimeout;
    }

    /**
     * Sets the bulk timeout.
     * @param timeout The bulk timeout.
     */
    public void setBulkTimeout(final String timeout) {
        this.bulkTimeout = timeout;
    }

    /**
     * Gets the indices timeout.

    public <T> T unwrap(final Class<T> t) {
        if (t.isAssignableFrom(this.getClass())) {
            return (T) this;
        }
        throw new ClassCastException();
    }

    /**
     * Gets the byte array representation of this SID.
     *
     * @return encoded SID
     */
    public byte[] toByteArray() {
        return toByteArray(this);
    }

    /**

        id = null;
    }

    /**
     * Gets the default page size from the Fess configuration.
     *
     * @return The default page size.
     */
    protected int getDefaultPageSize() {
        return ComponentUtil.getFessConfig().getPagingPageSizeAsInteger();
    }

    /**
     * Gets the default current page number, which is 1.
     *

        this.timeout = timeout;
    }

    /**
     * Gets the timeout value.
     *
     * @return the timeout value
     */
    public int getTimeout() {
        return timeout;
    }

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

public interface Event {

    /**
     * Gets the type of the event.
     *
     * @return the type of the event, never {@code null}
     */
    @Nonnull
    EventType getType();

    /**
     * Gets the session from which this event originates.
     *
     * @return the current session, never {@code null}
     */
    @Nonnull
    Session getSession();

    /**
     * Gets the current project (if any).
     *

                }
            }
        }
    }

    /**
     * Gets the appropriate crawler client for the given URL.
     * @param url The URL to get a client for.
     * @return The crawler client.
     */
    protected CrawlerClient getClient(final String url) {
        return clientFactory.getClient(url);
    }

  ASSERT_EQ(TF_OK, TF_GetCode(status.get())) << TF_Message(status.get());

  TF_OutputListSetNumOutputs(mm_outputs, 1, status.get());
  ASSERT_EQ(TF_OK, TF_GetCode(status.get())) << TF_Message(status.get());
  TF_ExecuteOperation(fn_op, 1, &input_t, mm_outputs, status.get());
  ASSERT_EQ(TF_OK, TF_GetCode(status.get())) << TF_Message(status.get());

    void received();

    /**
     * Unset received status
     */
    void clearReceived();

    /**
     * Gets the number of credits granted by the server.
     *
     * @return number of credits granted by the server
     */
    int getGrantedCredits();

    /**
     * Gets the error status code.
     *
     * @return status code
     */
    int getErrorCode();

    /**