code: def test_initialize_with_valid_model_and_generation_parameters(
      self, mock_check_valid_model, mock_auto_tokenizer
  ):
      model = "HuggingFaceH4/zephyr-7b-alpha"
      generation_kwargs = {"n": 1}
      stop_words = ["stop"]
      streaming_callback = None
  
      generator = HuggingFaceTGIChatGenerator(
          model=model,
          generation_kwargs=generation_kwargs,
          stop_words=stop_words,
          streaming_callback=streaming_callback,
      )
      generator.warm_up()
  
      assert generator.generation_kwargs == {
          **generation_kwargs,
          **{"stop_sequences": ["stop"]},
      }
      assert generator.tokenizer is not None
      assert generator.client is not None
      assert generator.streaming_callback == streaming_callback
  
imports: from unittest.mock import patch, MagicMock, Mock
  import pytest
  from huggingface_hub.inference._text_generation import TextGenerationStreamResponse, Token, StreamDetails, FinishReason
  from huggingface_hub.utils import RepositoryNotFoundError
  from haystack.components.generators.chat import HuggingFaceTGIChatGenerator
  from haystack.dataclasses import StreamingChunk, ChatMessage
label_desc: Use image node_id 1 for calling the TestHuggingFaceTGIChatGenerator obj's underlying member method code with example usage: obj.test_initialize_with_valid_model_and_generation_parameters(mock_check_valid_model, mock_auto_tokenizer) without return types