It is a thread-local dict-like object that is cleared at the end of each request by an associated middleware. This can be useful for global data that just be kept, referred to, or even modified throughout the lifetime of a request, like messaging, media registration, or cached datasets.
By default, the LocalStore Cache just is. It is an instantiated object of the johnny.localstore.LocalStore class located in johnny.cache.local. The use of the class comes from the middleware that clears it at the end of each request. Being a module-level object, it is a singleton.
A thread-local OpenStruct that can be used as a local cache. An instance is located at johnny.cache.local, and is cleared on every request by the LocalStoreClearMiddleware. It can be a thread-safe way to handle global contexts.