loadAllRecords
Returns a Flow emitting all records stored in this cache.
Note: in case of chained caches, this does not return records from the next cache in the chain. See nextCache.
It is permitted to modify the cache (including deleting the emitted records) while the returned flow is being collected.
Parameters
batchSize
size of the batch to load records from the underlying storage - hint that may be ignored depending on the implementation.