code: def texture_level(batch: List[np.ndarray]) -> List[float]:
      """Calculate the sharpness of each image in the batch."""
      return [
          Laplacian(img, CV_64F).var()
          if _is_grayscale(img)
          else Laplacian(rgb2gray(img), CV_64F).var()
          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 8 for calling a global function with example usage: texture_level(batch) and returns: unknown