Besides, the same migration would have to be done everywhere in the package; for example. also in   https://github.com/cms-sw/cmssw/blob/master/CalibMuon/DTCalibration/plugins/DTTTrigCorrection.cc#L49  an generally in each and every cc under plugins, not just in those interested by this PR.  IMO this is another reason why that migration deserves its own, separate PR.  @silviodonato can you please let me know if you agree.