code: def __call__(self, result=None):
      if result is None:
          return
      format_dict, md_dict = self.shell.display_formatter.format(result)
      self.outputs.append({"data": format_dict, "metadata": md_dict})
  
imports: from __future__ import print_function
  import sys
  import io
  import tokenize
  from traitlets.config.configurable import Configurable
  from IPython.utils.py3compat import builtin_mod, cast_unicode_py2
  from traitlets import Instance, Float
  from warnings import warn
label_desc: Use image node_id 2 for calling the CapturingDisplayHook obj's underlying member method code with example usage: obj.__call__(result) without return types