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""" The core's core. """
from __future__ import annotations
class Registry:
"""
Base class for registry objects.
Registries map a name to an object using attribute notation. Registry
classes behave singletonically: all their instances share the same state,
which is stored in the class object.
All subclasses should set `__slots__ = ()`.
"""
__slots__ = ()
def __setattr__(self, name, obj):
setattr(self.__class__, name, obj)
def __delattr__(self, name):
delattr(self.__class__, name)
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