id dZddlmZddlZddlmZddlmZddlm Z Gdd ej ee fZ Gd d e ee fej ee fZ dS) z>Provide the :class:`BidirectionalMapping` abstract base class.) annotationsN)abstractmethod)KT)VTcFeZdZdZdZeed dZd dZdS) BidirectionalMappingaEAbstract base class for bidirectional mapping types. Extends :class:`collections.abc.Mapping` primarily by adding the (abstract) :attr:`inverse` property, which implementers of :class:`BidirectionalMapping` should override to return a reference to the inverse :class:`BidirectionalMapping` instance. returnBidirectionalMapping[VT, KT]ct)zThe inverse of this bidirectional mapping instance. *See also* :attr:`bidict.BidictBase.inverse`, :attr:`bidict.BidictBase.inv` :raises NotImplementedError: Meant to be overridden in subclasses. )NotImplementedErrorselfs 6/usr/local/lib/python3.11/dist-packages/bidict/_abc.pyinversezBidirectionalMapping.inverse&s "!t.Iterator[tuple[VT, KT]]cNt|jS)aGet an iterator over the items in :attr:`inverse`. This is functionally equivalent to iterating over the items in the forward mapping and inverting each one on the fly, but this provides a more efficient implementation: Assuming the already-inverted items are stored in :attr:`inverse`, just return an iterator over them directly. Providing this default implementation enables external functions, particularly :func:`~bidict.inverted`, to use this optimized implementation when available, instead of having to invert on the fly. *See also* :func:`bidict.inverted` )iterritemsrs r __inverted__z!BidirectionalMapping.__inverted__5s DL&&(()))rN)r r )r r) __name__ __module__ __qualname____doc__ __slots__propertyrrrr rrr r saI  " " "^X "******rr ceZdZdZdZdS)MutableBidirectionalMappingzr(sED"""""")*)*)*)*)*19RV,)*)*)*X"6r2v">@PQSUWQW@Xr