[Python] what does wait visibility method mean in python?

I would like to know what this method means: root.wait_visibility(root), In the tikinter app. The intention is to change the visibility of the window. I recently switched from windos to linux and I'm having difficulties in the differences between operating systems, because in windows this same function is different. code:

import tkinter as tk

root=tk.Tk()

root.geometry("600x400+400+200")

root.title('My GUI Application')

**root.wait_visibility(root)**

root.wm_attributes('-alpha',0.50)

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