Как сделать Таймер Python (на turtl'e)??

Question

[NIGHTLIGHTME]

На 16 строке нужно сделать таймер на 10 секунд после 2 клика, затем выполнить pen.write("Your cps: ", screen.click / 10)

from turtle import *
from time import *
screen = Screen()
screen.click = 0

pen = Turtle()
pen.hideturtle()

def count(x,y):
screen.click += 1
pen.clear()
if screen.click > 1:
pen.write(screen.click, font=("Roboto", 100, "bold"), align="center")
else:
pen.write('Click to start', font=("Roboto", 100, "italic"), align="center")
16 СТРОКА
pen.write("Your cps: ", screen.click / 10)

screen.onclick(count)
screen.mainloop()
screen.onclick(count)