public Iterable<KeyValue<byte[], byte[]>> restoredEntries() {
        return restorableEntries;
    }
Get the entries that are restored to a KeyValueStore when it is constructed with this driver's {@link #context()
ProcessorContext}.

@return the restore entries; never null but possibly a null iterator
streams/src/test/java/org/apache/kafka/streams/state/KeyValueStoreTestDriver.java