class_docstr: Inherit this class to implement a new tokenizer.
class_docstr_tok: ["Inherit","this","class","to","implement","a","new","tokenizer","."]
code: def text_to_tokens(self, text):
      pass
  
file_path: NeMo/nemo/collections/common/tokenizers/tokenizer_spec.py
imports: from abc import ABC, abstractmethod
  from typing import List
label_desc: Use image node_id 1 for calling the TokenizerSpec obj's underlying member method code with example usage: obj.text_to_tokens(text) without return types