openfl.utilities.types.SingletonABCMeta

class openfl.utilities.types.SingletonABCMeta(name, bases, namespace, **kwargs)

Bases: ABCMeta

Metaclass for singleton instances.

This metaclass ensures that only one instance of any class using it can be created.

_instances

A dictionary mapping classes to their instances.

Type:

dict

__init__(*args, **kwargs)

Methods

__init__(*args, **kwargs)
mro()	Return a type's method resolution order.
register(subclass)	Register a virtual subclass of an ABC.

mro()

Return a type’s method resolution order.

register(subclass)

Register a virtual subclass of an ABC.

Returns the subclass, to allow usage as a class decorator.