code: def character_tokenizer(x: str):
      """
      ### Character level tokenizer
      """
      return list(x)
  
file_path: annotated_deep_learning_paper_implementations/labml_nn/utils/tokenizer.py
imports: from typing import Callable
  from labml.configs import BaseConfigs, option
label_desc: Use image node_id 2 for calling a global function with example usage: character_tokenizer(x) and returns: list