def preprocess_tree(self, tree):
        """Transform internal refuri targets in reference nodes to refids and
        transform footnote rubrics so that they do not end up in the output"""
        visitor = RinohTreePreprocessor(tree, self)
        tree.walkabout(visitor)
def preprocess_tree ( self , tree ) : visitor = RinohTreePreprocessor ( tree , self ) tree . walkabout ( visitor )
Transform internal refuri targets in reference nodes to refids and
        transform footnote rubrics so that they do not end up in the output