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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def cmd_layout(self, args):
        '''handle layout command'''
        from MAVProxy.modules.lib import win_layout
        if len(args) < 1:
            print("usage: layout <save|load>")
            return
        if args[0] == "load":
            win_layout.load_layout(self.mpstate.settings.vehicle_name)
        elif args[0] == "save":
            win_layout.save_layout(self.mpstate.settings.vehicle_name)