brim.core.singleton.Singleton# class brim.core.singleton.Singleton(*args, **kwargs)# Bases: object Makes a class a singleton via inheritance. Attributes Methods __init__ activate Activate the instance of the class. deactivate Deactivate the instance of the class. __weakref__# list of weak references to the object (if defined) activate() → None# Activate the instance of the class. deactivate() → None# Deactivate the instance of the class.