async def _skip_sync(self):
        """
        Read the length of the sync marker; if it matches the sync marker,
        return True. Otherwise, seek back to where we started and return False.
        """
        proposed_sync_marker = await self.reader.read(SYNC_SIZE)
        if SYNC_SIZE > 0 and not proposed_sync_marker:
            raise StopAsyncIteration
        if proposed_sync_marker != self.sync_marker:
            await self.reader.seek(-SYNC_SIZE, 1)

        Read the length of the sync marker; if it matches the sync marker,
        return True. Otherwise, seek back to where we started and return False.
        
Solutions/CyberArkAudit/Data Connectors/.python_packages/lib/site-packages/azure/storage/blob/_shared/avro/datafile_async.py