code: def __getitem__(self, key):
      return self.val[key]
  
imports: import datetime
  import io
  from os import linesep
  import re
  import sys
  from toml.tz import TomlTz
label_desc: Use image node_id 2 for calling the CommentValue obj's underlying member method code with example usage: obj.__getitem__(key) and returns: self