code: def test_nlg_fill_response_with_bad_slot_name(slot_name, slot_value):
      response_text = f"{{{slot_name}}}"
      t = TemplatedNaturalLanguageGenerator(responses=dict())
      result = t._fill_response(
          response={"text": response_text},
          filled_slots={slot_name: slot_value},
      )
      assert result["text"] == response_text
  
imports: import uuid
  from typing import Text, Any
  import jsonschema
  import pytest
  from sanic import Sanic, response
  from rasa.core.nlg.callback import CallbackNaturalLanguageGenerator
  from rasa.core.nlg.response import TemplatedNaturalLanguageGenerator
  from rasa.utils.endpoints import EndpointConfig, read_endpoint_config
  from rasa.core.agent import Agent
label_desc: Use image node_id 13 for calling a global function with example usage: test_nlg_fill_response_with_bad_slot_name(slot_name, slot_value) without return types