code: def get_dimension(img) -> int:
      """Return the number of dimensions of the image (grayscale = 1, RGB = 3)."""
      return img.shape[2]
  
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 16 for calling a global function with example usage: get_dimension(img) and returns: img