Python function arguments signature from docstring

Question

Is there a solution to extract function args signature from docstring?

Firstly, the parser should look for annotations and then fall back to docstring if there are no annotations. I found a similar question that works specifically for numpy docstring. I'd like to have a general solution that works for any docstring format. If you know how to do this with jedi, please let me know.

I'm also aware of typed_ast. But, once again, it tailored to the specific format of docstrings (rather a comment line).

Example.

def my_func(arg1):
    """
    Parameters
    ----------
    arg1: str
    """
    return arg1 + "1"

The result of the parse should be smth like {'arg1': str}.