def valid(self, order=None):
        return self.is_valid
Asserts that a lock has been acquired on the specified viewpoint.
dataset/ETHPy150Open dokterbob/satchmo/satchmo/apps/shipping/modules/ups/shipper.py/Shipper.valid--crossover with--dataset/ETHPy150Open viewfinderco/viewfinder/backend/db/viewpoint.py/Viewpoint.AssertViewpointLockAcquired