After https://github.com/key4hep/k4FWCore/pull/253, DataHandle.h will not include edm4hep/Constants.h (it should never have because it wasn't being used at least for the last versions) so now this include will need to happen wherever some label from edm4hep::labels is used.
After https://github.com/key4hep/k4FWCore/pull/253,
DataHandle.h
will not includeedm4hep/Constants.h
(it should never have because it wasn't being used at least for the last versions) so now this include will need to happen wherever some label fromedm4hep::labels
is used.