class FetchSessionHandler {

    static Set<TopicPartition> findMissing(Set<TopicPartition> toFind, Set<TopicPartition> toSearch) {
        Set<TopicPartition> ret = new LinkedHashSet<>();
        for (TopicPartition partition : toFind) {
            if (!toSearch.contains(partition)) {
                ret.add(partition);
            }
        }
        return ret;
    }

    public  FetchSessionHandler(LogContext logContext, int node);

}