code: def from_mmap(cls, fname):
          
          memmaped = joblib.load(fname, mmap_mode="r+")
          return cls(vocab=memmaped.vocab, vectors=memmaped.vectors)
docs: Create a WordVectors class from a memory map
  
          Parameters
          ----------
          fname : path to file
  
          Returns
          -------
          WordVectors instance