code: def __setitem__(self, name: str, value):
      names = name.split("/", 1)
      if len(names) > 1:
          member = getattr(self, names[0])
          member[names[1]] = value
      else:
          setattr(self, names[0], value)
  
imports: from __future__ import annotations
  import warnings
  import json
  from typing import Dict, Union, Optional
  from collections import OrderedDict
  from .meters import Meter
label_desc: Use image node_id 7 for calling the MeterDict obj's underlying member method code with example usage: obj.__setitem__(name, value) without return types