text: 
  
  TITLE
  Support serialized tokenizer in AutoTokenizer
  
  COMMENTS
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  # 🚀 Feature request
  
  Support loading serialized tokenizer (using `Tokenizer.from_file`) in `AutoTokenizer`.
  
  
  ## Motivation
  
  Some standard models use different tokenizers, e.g. `SentencePieceBPETokenizer`. So, there would be no need for implementing new models in `transformers`.
  