In jupyter notebook, when I press shift+tab on a function, I get info on the function signature i.e., the parameters it takes and the datatypes etc.) and also highlighting the parameter that I am writing at that specific moment. Is it possible to have that with marimo?

Also, somewhat related, I know that marimo intends to keep the file strictly in python but I really miss the functionality of <func>? or <func>?? of jupyter in marimo. Typing help(func) in one cell and calling func from another cell is not so user-friendly.