code: def bestsize(self):
      sizes = self.itersizes()
      if not sizes:
          raise SyntaxError("No 32bit icon resources found")
      return max(sizes)
  
imports: import io
  import os
  import shutil
  import struct
  import sys
  import tempfile
  from PIL import Image, ImageFile, PngImagePlugin
  from PIL._binary import i8
label_desc: Use image node_id 3 for calling the IcnsFile obj's underlying member method code with example usage: obj.bestsize() and returns: max