[Tkinter] Return a value to __main__

[menator01]

Using this example, is there a way to return the updated value or how to use the after method in the main?

import tkinter as tk

class Window(tk.Tk):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.count = 0
        self.label = tk.Label(self, text='Hello World')
        self.label.pack()


    def counter(self):
        self.count += 1
        # self.after(1000, self.counter)
        self.label['text'] = self.count
        return self.count


if __name__ == '__main__':
    app = Window()
    app.after(1000, app.counter)
    app.mainloop()