code: def get_data(self):
      return None
  
imports: import shutil
  from pathlib import Path
  from tempfile import TemporaryDirectory
  from unittest.mock import patch
  import numpy
  import PIL
  import pytest
  from common_vision_utils import DummyFlowersPipelineSerializer, ImageClassificationPipelineSerializer, ObjectDetectionPipelineSerializer, create_dummy_model, create_image_classification_pipeline, load_flowers_dataset, load_fridge_object_detection_dataset, load_imagenet_dataset, load_imagenet_labels, retrieve_fridge_object_detection_model
  from rai_vision_insights_validator import run_and_validate_serialization
  from responsibleai_vision import ModelTask, RAIVisionInsights
  from responsibleai_vision.common.constants import ImageColumns
label_desc: Use image node_id 2 for calling the FakeImageDownloader obj's underlying member method code with example usage: obj.get_data() and returns: None