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r9 c C s t j| ||�}||_|S )N)r r" r9 )r! �obr r9 r r r r r" N s zKeyedRef.__new__c s t � j||� d S )N)r' rF )r rk r r9 )r) r r rF S s zKeyedRef.__init__)r9 )r. r/ r0 r1 r2 r" rF r4 r r )r) r rR B s rR c @ s� e Zd ZdZd+dd�Zdd� Zdd� Zd d
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can be especially useful with objects that override attribute
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t | j�S )az Return a list of weak references to the keys.
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� Zedd� �Zedd� �Zejdd� �Zdd� Zedd� �Zedd� �ZdS )r a Class for finalization of weakrefable objects
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and returns the result. After this the finalizer is dead, and
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