public Iterable<RecordBatch> batchesFrom(FetchContext fetchContext, final long startOffset) {
        return () -> batchIterator(fetchContext, startOffset, Long.MAX_VALUE, Integer.MAX_VALUE);
    }
Return the largest timestamp of the messages after a given offset

@param startOffset The starting offset.
@return The largest timestamp of the messages after the given position.
core/src/main/scala/kafka/log/streamaspect/ElasticLogFileRecords.java