code: def add_exit(self):
          
          self.completable.append("quit")
          self.completable.append("exit")
  
          self.descrip["quit"] = "Exits the program"
          self.descrip["exit"] = "Exits the program"
  
          self.command_tree.add_child(CommandBranch("quit"))
          self.command_tree.add_child(CommandBranch("exit"))
  
          self.command_param["quit"] = ""
          self.command_param["exit"] = ""
docs: adds the exits from the application