Create typed Class-Structure Diagram

[krlng]

This isn't a bug, but a question for help / hints.

I would like to use lolviz to create a graph of my python class structure. Every class-attribute is type annotated, so it should be possible to like their interactions without creating class instances. Here is a minimal example:

from copy import deepcopy
from lolviz import *
class Workout:
    def __init__(
        self,
        date: dt.date,
        name: str = "",
        duration: int = 0
    ):
        # assert isinstance(tss, (np.number, int))
        self.date: dt.date = date
        self.name: str = name
        self.duration: int = duration  # in seconds
        self.done: boolean = False

class Athlete:
    def __init__(
        self,
        name: str,
        birthday: dt.date,
        sports: List[str]
    ):
        self.name: str = name
        self.birthday: dt.date = birthday
        self.sports: List[str] = sports


class DataContainer:
    def __init__(self, 
                 athlete: Athlete, 
                 tasks: List[Workout] = [], 
                 fulfilled: List[Workout] = []):
        self.athelete: Athlete = athlete
        self.tasks: List[Workout] = [w for w in tasks if isinstance(w, Workout)]
        self.fulfilled: List[Workout] = [w for w in fulfilled if isinstance(w, Workout)]

me = Athlete("nico", dt(1990,3,1).date(), sports=["running","climbing"])
t1 = Workout(date=dt(2020,1,1).date(), name="5k Run")
f1 = deepcopy(t1)
f1.done = True
dc1 = DataContainer(me, tasks=[t1], fulfilled=[f1])

Now I can use objviz(dc1) to create the following diagram:

What I actually would like to achieve is a command like classviz(DataContainer) which will give me a similar chart, but not with the actual attribute values but their types. For sure there will be other small changes, but that's the basic idea.

What I already can do is something like:

def get_types(annotated_class):
    return (annotated_class.__name__, {k: v.__name__ for k,v in annotated_class.__init__.__annotations__.items()})

get_types(Workout)

which gives me something like: ('Workout', {'date': 'date', 'name': 'str', 'duration': 'int'}). How ever I don't find a proper way to create similar table-elements which contain Workout in the header and the name-attribute mapping in it's body.

Can someone give me a hint, how to create such tables manually? I am also happy for any additional advices