class_docstr: Simple subclass of Group that creates an annotation label
code: def __init__(self, label: str, item):
      super().__init__(
          item=item, label="[{}]".format(label) if label else label
      )
  
imports: import railroad
  import pyparsing
  import typing
  from typing import List, NamedTuple, Generic, TypeVar, Dict, Callable, Set, Iterable
  from jinja2 import Template
  from io import StringIO
  import inspect
label_desc: Use image node_id 1 to create a new AnnotatedItem object from inherited base classes: railroad with example: obj = AnnotatedItem(label, item)