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r. s r �__len__zNameDict.__len__R s � ��4�<�<� � r c � � || j v S r r r s r �has_keyzNameDict.has_keyU s � ��d�l�l�"�"r c �B � t |� }|| j kD r | j }t | d� D ]1 }t j j ||d � }|| v s�*|| | fc S | t j j }t j j |fS )a� Find the deepest match to *name* in the dictionary.
The deepest match is the longest name in the dictionary which is
a superdomain of *name*. Note that *superdomain* includes matching
*name* itself.
*name*, a ``dns.name.Name``, the name to find.
Returns a ``(key, value)`` where *key* is the deepest
``dns.name.Name``, and *value* is the value associated with *key*.
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