code: def generate_image():
      arr = np.random.randint(
          low=0, high=256, size=(300, 300, 3), dtype=np.uint8
      )
      img = Image.fromarray(arr, mode="RGB")
      return img
  
file_path: cleanlab/tests/datalab/conftest.py
imports: import numpy
  import pandas
  import pytest
  from datasets import load_dataset
  from datasets.arrow_dataset import Dataset
  from PIL import Image
  from sklearn.neighbors import NearestNeighbors
  from cleanlab.datalab.datalab import Datalab
label_desc: Use image node_id 7 for calling a global function with example usage: generate_image() and returns: img