code: def check_rasterio() -> bool:
      try:
          import rasterio
  
          return True
      except:
          return False
  
imports: import os.path
  import numpy
  import cv2
  import math
  from typing import List, Dict, Tuple, Union
  from collections import defaultdict
  from easydict import EasyDict
  from .imgtools import sample_norm, two_percentLinear, get_thumbnail
label_desc: Use image node_id 1 for calling a global function with example usage: check_rasterio() and returns: True, False