code: def __del__(self):
      if not self.closed:
          sys.stderr.write(
              "Iterator garbage collected without being closed"
          )
      assert_(
          self.closed, "Iterator garbage collected without being closed"
      )
  
imports: import re
  import sys
  import warnings
label_desc: Use image node_id 5 for calling the IteratorWrapper obj's underlying member method code with example usage: obj.__del__() without return types