code: def unload(name):
      try:
          del sys.modules[name]
      except KeyError:
          pass
  
imports: import contextlib
  import _imp
  import importlib
  import importlib.util
  import os
  import shutil
  import sys
  import unittest
  import warnings
  from .os_helper import unlink, temp_dir
label_desc: Use image node_id 2 for calling a global function with example usage: unload(name) without return types