code: def test_warm_up_doesn_reload(self, pipeline_mock):
      generator = HuggingFaceLocalGenerator(
          model="google/flan-t5-base",
          task="text2text-generation",
          token="test-token",
      )
  
      pipeline_mock.assert_not_called()
  
      generator.warm_up()
      generator.warm_up()
  
      pipeline_mock.assert_called_once()
  
imports: from unittest.mock import patch, Mock
  import pytest
  import torch
  from transformers import PreTrainedTokenizerFast
  from haystack.components.generators.hugging_face_local import HuggingFaceLocalGenerator, StopWordsCriteria
label_desc: Use image node_id 17 for calling the TestHuggingFaceLocalGenerator obj's underlying member method code with example usage: obj.test_warm_up_doesn_reload(pipeline_mock) without return types