code: def do(self):
      for image in self.images:
          pass
  
file_path: Augmentor/tests/test_custom_operations.py
imports: import os
  import sys
  import Augmentor
  from Augmentor.Operations import Operation
  import tempfile
  from PIL import Image
  import io
label_desc: Use image node_id 2 for calling the DoubleImageSize obj's underlying member method code with example usage: obj.do() without return types