@Override
    public int hashCode() {
        return Objects.hash(
                provenance,
                leaderAndEpoch,
                numBatches,
                elapsedNs,
                numBytes);
    }
The total size of the records in bytes that we read while creating the delta.
metadata/src/main/java/org/apache/kafka/image/loader/LogDeltaManifest.java