code: def __exit__(self, *args):
      self.value = self._sentinel
      sys.argv[0] = self._saved_value
  
imports: import sys
  import importlib.machinery
  import importlib.util
  import io
  import os
label_desc: Use image node_id 3 for calling the _ModifiedArgv0 obj's underlying member method code with example usage: obj.__exit__() without return types