code: def __call__(self):
      return self.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 2 for calling the StrongRef obj's underlying member method code with example usage: obj.__call__() and returns: self