code: def word_similarity(self, w1, w2):
      return (
          self._model.similarity(w1, w2)
          if self.check_word(w1) and self.check_word(w2)
          else 0.0
      )
  
imports: from numpy import array
  from gensim import matutils
label_desc: Use image node_id 5 for calling the WordRelatedness obj's underlying member method code with example usage: obj.word_similarity(w1, w2) and returns: unknown