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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _create_indexer(cls, name, indexer):
 """Create an indexer like _name in the class."""

        if getattr(cls, name, None) is None:
            _indexer = functools.partial(indexer, name)
            setattr(cls, name, property(_indexer, doc=indexer.__doc__))