class_docstr: Dictionary wrapper that updates an arguments instance on any item set in the dictionary 
class_docstr_tok: ["Dictionary","wrapper","that","updates","an","arguments","instance","on","any","item","set","in","the","dictionary"]
code: def _do_update(self, E=None, **F):
      res = super(ProxyDictPostWrite, self).update(
          ProxyDictPostWrite(self._update_obj, self._set_callback, E)
          if E is not None
          else ProxyDictPostWrite(
              self._update_obj, self._set_callback, **F
          )
      )
      return res
  
imports: import itertools
  import json
  from copy import copy
  from logging import getLogger
  import six
  import yaml
label_desc: Use image node_id 7 for calling the ProxyDictPostWrite obj's underlying member method code with example usage: obj._do_update(E) and returns: res