code: def _load_image(self, path):
      assert (
          path.exists()
      ), f"File does not exist at the path {str(path)}"
      try_to_import_cv2()
      import cv2
  
      img = cv2.imread(str(path))
      return cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
  
file_path: evadb/test/integration_tests/long/functions/test_facenet_udf.py
imports: import unittest
  from pathlib import Path
  from test.markers import windows_skip_marker
  from test.util import EvaDB_TEST_DATA_DIR
  import pandas
  from evadb.models.storage.batch import Batch
  from evadb.utils.generic_utils import try_to_import_cv2
label_desc: Use image node_id 2 for calling the FaceNet obj's underlying member method code with example usage: obj._load_image(path) and returns: cv2