code: def chat_templates(user_choice: str):
      """
      Finds the correct chat_template for the tokenizer_config.
  
      Args:
          user_choice (str): The user's choice of template.
  
      Returns:
          str: The chosen template string.
  
      Raises:
          ValueError: If the user_choice is not found in the templates.
      """
  
      templates = {
          "inst": "{{ bos_token }}{% for message in messages %}{% if (message['role'] == 'user') != (loop.index0 % 2 == 0) %}{{ raise_exception('Conversation roles must alternate user/assistant/user/assistant/...') }}{% endif %}{% if message['role'] == 'user' %}{{ '[INST] ' + message['content'] + ' [/INST]' }}{% elif message['role'] == 'assistant' %}{{ message['content'] + eos_token}}{% else %}{{ raise_exception('Only user and assistant roles are supported!') }}{% endif %}{% endfor %}",  # I don't know what this one is called. Used by Mistral/Mixtral.
          "chatml": "{% if not add_generation_prompt is defined %}{% set add_generation_prompt = false %}{% endif %}{% for message in messages %}{{'<|im_start|>' + message['role'] + '\n' + message['content'] + '<|im_end|>' + '\n'}}{% endfor %}{% if add_generation_prompt %}{{ '<|im_start|>assistant\n' }}{% endif %}",
      }
  
      if user_choice in templates:
          return templates[user_choice]
  
      raise ValueError(f"Template '{user_choice}' not found.")
  
label_desc: Use image node_id 1 for calling a global function with example usage: chat_templates(user_choice) and returns: templates