I want to run the command when I erase the window in Tkinter.

I want to run the command when I erase the Toplevel window.
In the tk.Tk() window, you can overwrite _del__, but if you do so in Toplevel, it will run when the main window is turned off.
I think it's okay to make a separate button myself, but can't you run it with the delete button on the title bar?