#NEWLINE# def __init__( self , leaf , index ) : #NEWLINE# #INDENT# "\n        Construct a new ``LeafEdge``.\n\n        :param leaf: The new edge's leaf value, specifying the word\n            that is recorded by this edge.\n        :param index: The new edge's index, specifying the position of\n            the word that is recorded by this edge.\n        " #NEWLINE# self . _leaf = leaf #NEWLINE# self . _index = index #NEWLINE# self . _comparison_key = ( leaf , index )