code: def handler(context):
      handler = MNISTClassifier()
      handler.initialize(context)
      return handler
  
file_path: serve/ts/torch_handler/unit_tests/test_mnist_kf.py
imports: import io
  import shutil
  import sys
  from pathlib import Path
  import pytest
  import torchvision.transforms
  from PIL import Image
  from examples.image_classifier.mnist.mnist_handler import MNISTDigitClassifier
  from ts.torch_handler.request_envelope import kserve, kservev2
  from .test_utils.mock_context import MockContext
label_desc: Use image node_id 3 for calling a global function with example usage: handler(context) and returns: handler