code: def __eq__(self, other):
      """Check whether two vectorizers are the same."""
      return (
          isinstance(other, OldDictVectorizer)
          and self.dtype == other.dtype
          and self.vocabulary_ == other.vocabulary_
      )
  
label_desc: Use image node_id 1 for calling the DictVectorizer obj's underlying member method code with example usage: obj.__eq__(other) and returns: unknown