Foundation class used for custom Types outside the common native Dart
types.
For example, any custom "Model" class, like User().obs will use Rx as
wrapper.
This class is the foundation for all reactive (Rx) classes that makes SINT
so powerful.
This interface is the contract that _RxImpl<T> uses in all it's
subclass.
SINT by default disposes unused controllers from memory,
Through different behaviors.
SmartManagement.full
SmartManagement.full is the default one. Dispose classes that are
not being used and were not set to be permanent. In the majority
of the cases you will want to keep this config untouched.
If you new to SINT then don't change this.
SmartManagement.onlyBuilder only controllers started in init:
or loaded into a Binding with Sint.lazyPut() will be disposed. If you use
Sint.put() or Sint.putAsync() or any other approach, SmartManagement
will not have permissions to exclude this dependency. With the default
behavior, even ui instantiated with "Sint.put" will be removed,
unlike SmartManagement.onlyBuilders.
SmartManagement.keepFactoryJust like SmartManagement.full,
it will remove it's dependencies when it's not being used anymore.
However, it will keep their factory, which means it will recreate
the dependency if you need that instance again.
This method will replace the old .obs method.
It's a breaking change, but it is essential to avoid conflicts with
the new dart 3 features. T will be inferred by contextual type inference
rather than the extension type.
