/**
 * TTL API.
 *
 * @author Jerry Lee (oldratlee at gmail dot com)
 * @see com.alibaba.ttl3.TransmittableThreadLocal
 * @see com.alibaba.ttl3.TtlRunnable
 * @see com.alibaba.ttl3.TtlCallable
 * @see com.alibaba.ttl3.TtlWrappers
 */
package com.alibaba.ttl3;
