code: def similar(self, word, n=10, metric="cosine"):
          
          return self.closest(self[word], n=n, metric=metric)
docs: Return similar words based on a metric
  
          Parameters
          ----------
          word : string
          n : int (default 10)
  
          Returns
          -------
          Tuple of 2 numpy.array:
              1. position in self.vocab
              2. cosine similarity