How to show substitution options in input field in PySimpleGUI?

Question

Python

Hello. Are there any connoisseurs of such a little-known library as PySimpleGUI, or at least tkinter, since the former is based on the latter? I want to create a widget similar to a browser search bar that would suggest substitution options based on the information entered. I don't want to use objects like Combo or DropDown. Does anyone have any idea how to do this?