how to edited Tkinter Toplevel from main form?

[kucingkembar]

i tried to edited Toplevel title, but after 2 hours i failed, please help

from tkinter import *
def editedtoop(top):
    top.title("Edited")

def toop():
    global root
    top = Toplevel(root)
    top.title("toplevel")
    l2 = Label(top, text = "This is toplevel window").pack()
    B = Button(root, text ="Edit Top", command=lambda: editedtoop(top)).pack()
    
root = Tk()
root.title("main")
l = Label(root, text = "This is root window").pack()
toop()
root.mainloop()