code: def __len__(self):
      return 1
  
file_path: opencv-python/setup.py
imports: import io
  import os
  import os.path
  import sys
  import runpy
  import subprocess
  import re
  import sysconfig
  import platform
  from skbuild import cmaker, setup
label_desc: Use image node_id 1 for calling the EmptyListWithLength obj's underlying member method code with example usage: obj.__len__() and returns: int