code: def extract_region_from_image(image, region_bounding_box):
      return image[
          region_bounding_box[0] : region_bounding_box[2],
          region_bounding_box[1] : region_bounding_box[3],
      ]
  
imports: import numpy
  import skimage.io
  import skimage.util
  import os
label_desc: Use image node_id 1 for calling a global function with example usage: extract_region_from_image(image, region_bounding_box) and returns: image