long epoch();
long writePosition();
ScanResult moveToIndexForRead(@NotNull ExcerptContext ec, long index);
@NotNull
MappedBytes bytes();
<BUG>long sequenceForPosition(ExcerptContext ec, long position, boolean inclusive) throws EOFException, UnrecoverableTimeoutException, StreamCorruptedException;
String dump();</BUG>
void lastAcknowledgedIndexReplicated(long lastAcknowledgedIndexReplicated);
long lastAcknowledgedIndexReplicated();
void setPositionForSequenceNumber(final ExcerptContext ec, long sequenceNumber, long position) throws UnrecoverableTimeoutException, StreamCorruptedException;

long epoch();
long writePosition();
ScanResult moveToIndexForRead(@NotNull ExcerptContext ec, long index);
@NotNull
MappedBytes bytes();
long sequenceForPosition(ExcerptContext ec, long position, boolean inclusive)
throws UnrecoverableTimeoutException, StreamCorruptedException;
long lastSequenceNumber(ExcerptContext ec) throws StreamCorruptedException;
String dump();
void lastAcknowledgedIndexReplicated(long lastAcknowledgedIndexReplicated);
long lastAcknowledgedIndexReplicated();
void setPositionForSequenceNumber(final ExcerptContext ec, long sequenceNumber, long position) throws UnrecoverableTimeoutException, StreamCorruptedException;
