code: def flip_image_horizontally():
      global flip_H
  
      flip_H = not flip_H
      adjust_ghsps()
  
imports: import matplotlib.pyplot
  from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2Tk
  from matplotlib.figure import Figure
  from tkinter import *
  from tkinter import filedialog
  import platform
  import math
  import caer
label_desc: Use image node_id 7 for calling a global function with example usage: flip_image_horizontally() without return types