code: def area(batch: List[np.ndarray]) -> List[int]:
      """Return list of integers of image areas (height multiplied by width)."""
      return [np.prod(get_size(img)) for img in batch]
  
imports: from typing import Dict, List, Tuple
  import numpy
  from cv2 import CV_64F, Laplacian
  from skimage.color import rgb2gray
label_desc: Use image node_id 2 for calling a global function with example usage: area(batch) and returns: unknown