code: def pack_tokenizer_config(model_config):
      """
      Convenience method to package tokenizer configs into one element to more easily pass it to
      JavaScript rendering code.
      Args:
          model_config: dict of model configuration options used for model-config or in __init__.py
  
      Returns:
          model_config dict with 'tokenizer_config' elements
      """
      tokenizer_config = {
          "token_prefix": model_config["token_prefix"],
          "partial_token_prefix": model_config["partial_token_prefix"],
      }
      model_config["tokenizer_config"] = tokenizer_config
      return model_config
  
imports: import yaml
  import os
label_desc: Use image node_id 3 for calling a global function with example usage: pack_tokenizer_config(model_config) and returns: model_config