///<inheritdoc />
public override Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
{
ThrowIfDisposed();
if (_memoryStatus == MemoryFlag.AutoOverFlowToDisk && _isInMemory && count + UnderlyingStream.Position > _threshholdSize)
{
OverflowToPersistentStream();
}
return(UnderlyingStream.WriteAsync(buffer, offset, count, cancellationToken));
}