@JsonProperty
    public int getDurationInSecs() {
        return durationInSecs;
    }
Returns the lease duration in seconds. See
<a href="https://github.com/Netflix/eureka/wiki/Understanding-eureka-client-server-communication#renew">
renew</a>.
eureka/src/main/java/com/linecorp/armeria/common/eureka/LeaseInfo.java