BTW, Redis has this one - `RedisProperties` and that has an interest constructor - `RedisProperties(String key, RedisOperations<String, ?> operations)`. That's mean that we can have a `RedisMap` under one `hash key`. In the our case: the `key` is, e.g., 'int.properties', and the value a `RedisMap` with all appropriate properties.
So, looks like our `RedisMetadataStore` was implemented not right way. I'd prefer to have some `region` hook to the `MetadataStore` too.