I do not think you can put an Attribute section inside of your docstring to get your desired results.
I tried giving each attribute a doc comment and specified the type and desired comment.
class DataHolder:
"""
Class to hold some data
Each attribute needs its own doc comment with its type
"""
#: bool: Run without Gui
batch = False
#: bool: Show debug messages
debug = False
#: str: Object Name
name="default"
#: int: Object Version
version = 0
This gives the following output and a nice Type description of each output.
Take a look here: