@vehicle.parameters.on_attribute('THR_MIN')  
def decorated_thr_min_callback(self, attr_name, value):
    print (attr_name, value) % " PARAMETER CALLBACK: %s changed to: %s"
dataset/ETHPy150Open dronekit/dronekit-python/examples/vehicle_state/vehicle_state.py/decorated_thr_min_callback/swapped operands of `%`