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� de� � Zd!d�Z e ef� � Z d"d�Z d#d$d �Z dS )%zHClasses representing different types of constraints on inference values.� )� annotationsN)�ABC�abstractmethod)�Iterator)�Union)�bases�nodes�util)�InferenceResult)� � )�Selfc �^ � e Zd ZdZdd�Zee ddd�� � � � Zedd�� � ZdS )�
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| j |j � � S t | t j � � r*t |t j � � r| j |j k S dS )z$Returns True if the two nodes match.F)
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