A flag to control the replay behaviour of a Unit. It decides whether the value should be replayed when you subscribe to the default Observable.
Optional config option to set the cache size.
It can be minimum 1, and maximum Infinity.
Otherwise, if it's not provided, or it's not valid, the default cache size 2 will be used.
An optional flag to disable/enable the distinct value check on the dispatched values.
An optional flag to make the Unit's value immutable.
An optional flag to make the Unit persistent, using LocalStorage or SessionStorage. An id (see BaseConfig.id) is mandatory to make it work.
The Storage to be used for storing the value if the Unit is persistent.
It can be either LocalStorage or SessionStorage or any other API,
that implements Storage API interface.
Shared configuration options for all the Units.