public static boolean isEnableTimerTask() {
        return isBooleanOptionSet(TTL_AGENT_ENABLE_TIMER_TASK_KEY, true);
    }
Whether timer task is enhanced by ttl agent, check {@link #isTtlAgentLoaded()} first.
<p>
Same as {@code isBooleanOptionSet(TTL_AGENT_ENABLE_TIMER_TASK_KEY, true)}.

@see java.util.Timer
@see java.util.TimerTask
@see TtlAgent
@see #isBooleanOptionSet(String, boolean)
@see #TTL_AGENT_ENABLE_TIMER_TASK_KEY
@since 2.10.1
ttl2-compatible/src/main/java/com/alibaba/ttl/threadpool/agent/TtlAgent.java