Constructs a new
AsyncCreatable instance. For internal and subclass use only.
New subclass instances must be created with the static create method.
Optional options: object
An options object providing initialization params.
Clear the cache to force reading from disk.
NOTE: Only call this method if you must and you know what you are doing.
Reuse a StateAggregator if one was already created for the current global state directory Otherwise, create one and adds it to map for future reuse. HomeDir might be stubbed in tests