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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_gimbal_roi(self, args):
        '''control roi position'''
        latlon = None
        try:
            latlon = self.module('map').click_position
        except Exception:
            print("No map available")
            return
        if latlon is None:
            print("No map click position available")
            return
        self.master.mav.mount_control_send(self.target_system,
                                           self.target_component,
                                           latlon[0]*1e7,
                                           latlon[1]*1e7,
                                           0, # altitude zero for now
                                           0)