public void setInterval(String interval) {
        this.interval = interval;
    }
<p>
The approximate number of seconds between thumbnails. Specify an integer value.
</p>

@param interval
       The approximate number of seconds between thumbnails. Specify an integer value.
aws-java-sdk-elastictranscoder/src/main/java/com/amazonaws/services/elastictranscoder/model/Thumbnails.java