Recreate the program from Question 4 but encapsulate the GUI code in a class CounterGui. This program should have all the same functionality as the program in Question 4: The program has two buttons and a label that displays the current value of a counter. One button, bearing the text +1, should add one to the counter, while the other button, labelled -1, should subtract one from it. The counter should start at zero.

from tkinter import *
from tkinter.ttk import *

# Write your code here

def main():
    """Set up the GUI and run it"""
    window = Tk()
    counter_gui = CounterGui(window)
    window.mainloop()

main()