public static PooledMemoryRecords of(long logBaseOffset, List<FetchResult> fetchResults, boolean pooled) {
            return new PooledMemoryRecords(logBaseOffset, fetchResults, pooled);
        }
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