ncstore = self.root.findFirstNmrConstraintStore(serial=self.constraintStoreSerial)
if ncstore:
serials = self.constraintListSerials
if serials:
result = tuple(ncstore.findFirstConstraintList(serial=x) for x in serials if x is not None)
else:
result = tuple(ncstore.sortedConstraintLists())
else:
result = tuple()