public void setLastUpdatedAt(java.util.Date lastUpdatedAt) {
        this.lastUpdatedAt = lastUpdatedAt;
    }
<p>
The Unix epoch timestamp in seconds for when the resource was last updated.
</p>

@param lastUpdatedAt
       The Unix epoch timestamp in seconds for when the resource was last updated.
aws-java-sdk-appmesh/src/main/java/com/amazonaws/services/appmesh/model/RouteRef.java