input: Write a python function to create a simple Tkinter window with a label.
  assert create_tkinter_window() is None
output: def create_tkinter_window():
      import tkinter as tk
      
      window = tk.Tk()
      window.title("Simple Tkinter Window")
      
      label = tk.Label(window, text="Hello, Tkinter!")
      label.pack()
      
      window.mainloop()