/usr/include/OpenMS/METADATA/ is in libopenms-dev 1.11.1-5.
This file is owned by root:root, with mode 0o755.
..
/usr/include/OpenMS/METADATA/Acquisition.h
/usr/include/OpenMS/METADATA/AcquisitionInfo.h
/usr/include/OpenMS/METADATA/CVTerm.h
/usr/include/OpenMS/METADATA/CVTermList.h
/usr/include/OpenMS/METADATA/ChromatogramSettings.h
/usr/include/OpenMS/METADATA/ContactPerson.h
/usr/include/OpenMS/METADATA/DataProcessing.h
/usr/include/OpenMS/METADATA/Digestion.h
/usr/include/OpenMS/METADATA/DocumentIDTagger.h
/usr/include/OpenMS/METADATA/DocumentIdentifier.h
/usr/include/OpenMS/METADATA/ExperimentalSettings.h
/usr/include/OpenMS/METADATA/Gradient.h
/usr/include/OpenMS/METADATA/HPLC.h
/usr/include/OpenMS/METADATA/Identification.h
/usr/include/OpenMS/METADATA/IdentificationHit.h
/usr/include/OpenMS/METADATA/Instrument.h
/usr/include/OpenMS/METADATA/InstrumentSettings.h
/usr/include/OpenMS/METADATA/IonDetector.h
/usr/include/OpenMS/METADATA/IonSource.h
/usr/include/OpenMS/METADATA/MSQuantifications.h
/usr/include/OpenMS/METADATA/MassAnalyzer.h
/usr/include/OpenMS/METADATA/MetaInfo.h
/usr/include/OpenMS/METADATA/MetaInfoDescription.h
/usr/include/OpenMS/METADATA/MetaInfoInterface.h
/usr/include/OpenMS/METADATA/MetaInfoRegistry.h
/usr/include/OpenMS/METADATA/Modification.h
/usr/include/OpenMS/METADATA/PeptideEvidence.h
/usr/include/OpenMS/METADATA/PeptideHit.h
/usr/include/OpenMS/METADATA/PeptideIdentification.h
/usr/include/OpenMS/METADATA/Precursor.h
/usr/include/OpenMS/METADATA/Product.h
/usr/include/OpenMS/METADATA/ProteinHit.h
/usr/include/OpenMS/METADATA/ProteinIdentification.h
/usr/include/OpenMS/METADATA/Sample.h
/usr/include/OpenMS/METADATA/SampleTreatment.h
/usr/include/OpenMS/METADATA/ScanWindow.h
/usr/include/OpenMS/METADATA/Software.h
/usr/include/OpenMS/METADATA/SourceFile.h
/usr/include/OpenMS/METADATA/SpectrumIdentification.h
/usr/include/OpenMS/METADATA/SpectrumSettings.h
/usr/include/OpenMS/METADATA/Tagging.h
/usr/include/OpenMS/METADATA/sources.cmake