updated data manager

            try:

                # assert detectors is a subset of available detectors

                assert set(detectors).issubset(set(self.available_detectors))

                self.target_detectors = list(detectors)

            except AssertionError as ae:

                print("@DM: available detector IDs are ", self.available_detectors)

                print("@DM: target detector IDs are ", detectors)

                print("@DM: available detector are ", self.available_detectors)

                print("@DM: target detector are ", detectors)

                print("@DM: final target detectors are ", set(detectors) & set(self.available_detectors))

                # raise ae

            self.target_detectors = detectors

                self.target_detectors = set(detectors) & set(self.available_detectors)

        print("final target detector IDs are ", self.target_detectors)

        return