code: def __init__(self, obj):
      self.obj = obj
  
imports: from __future__ import print_function
  import os
  import sys
  import traceback
  import types
  import weakref
  from IPython.utils import openpy
  from IPython.utils.py3compat import PY3
  from IPython.core.magic import Magics, magics_class, line_magic
label_desc: Use image node_id 1 to create a new StrongRef object from inherited base classes: object with example: obj = StrongRef(obj)