class_docstr: Display help for flags in main module and all dependent modules.
code: def __init__(self):
      super().__init__("helpfull", False, "show full help")
  
file_path: tensorboard/tensorboard/compat/tensorflow_stub/app.py
imports: import errno
  import sys
  from .None import flags
label_desc: Use image node_id 1 to create a new _HelpfullFlag object from inherited base classes: flags with example: obj = _HelpfullFlag()