public void setHeartbeatTimeout(Integer heartbeatTimeout) {
        this.heartbeatTimeout = heartbeatTimeout;
    }
<p>
The maximum time, in seconds, that can elapse before the lifecycle hook times out. The range is from
<code>30</code> to <code>7200</code> seconds. The default value is <code>3600</code> seconds (1 hour).
</p>

@param heartbeatTimeout
       The maximum time, in seconds, that can elapse before the lifecycle hook times out. The range is from
       <code>30</code> to <code>7200</code> seconds. The default value is <code>3600</code> seconds (1 hour).
aws-java-sdk-autoscaling/src/main/java/com/amazonaws/services/autoscaling/model/LifecycleHookSpecification.java