code: def setBand(self, bands: Union[List[int], Tuple[int]]) -> None:
      self.show_band = list(bands)
  
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 5 for calling the Raster obj's underlying member method code with example usage: obj.setBand(bands) without return types