/usr/include/KF5/Attica/attica/ is in libkf5attica-dev 5.18.0-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/KF5/Attica/attica/accountbalance.h
/usr/include/KF5/Attica/attica/achievement.h
/usr/include/KF5/Attica/attica/activity.h
/usr/include/KF5/Attica/attica/atticabasejob.h
/usr/include/KF5/Attica/attica/atticaclient_export.h
/usr/include/KF5/Attica/attica/atticautils.h
/usr/include/KF5/Attica/attica/buildservice.h
/usr/include/KF5/Attica/attica/buildservicejob.h
/usr/include/KF5/Attica/attica/buildservicejoboutput.h
/usr/include/KF5/Attica/attica/category.h
/usr/include/KF5/Attica/attica/comment.h
/usr/include/KF5/Attica/attica/content.h
/usr/include/KF5/Attica/attica/deletejob.h
/usr/include/KF5/Attica/attica/distribution.h
/usr/include/KF5/Attica/attica/downloaddescription.h
/usr/include/KF5/Attica/attica/downloaditem.h
/usr/include/KF5/Attica/attica/event.h
/usr/include/KF5/Attica/attica/folder.h
/usr/include/KF5/Attica/attica/forum.h
/usr/include/KF5/Attica/attica/getjob.h
/usr/include/KF5/Attica/attica/homepageentry.h
/usr/include/KF5/Attica/attica/homepagetype.h
/usr/include/KF5/Attica/attica/icon.h
/usr/include/KF5/Attica/attica/itemjob.h
/usr/include/KF5/Attica/attica/knowledgebaseentry.h
/usr/include/KF5/Attica/attica/license.h
/usr/include/KF5/Attica/attica/listjob.h
/usr/include/KF5/Attica/attica/message.h
/usr/include/KF5/Attica/attica/metadata.h
/usr/include/KF5/Attica/attica/person.h
/usr/include/KF5/Attica/attica/platformdependent.h
/usr/include/KF5/Attica/attica/platformdependent_v2.h
/usr/include/KF5/Attica/attica/postjob.h
/usr/include/KF5/Attica/attica/privatedata.h
/usr/include/KF5/Attica/attica/project.h
/usr/include/KF5/Attica/attica/provider.h
/usr/include/KF5/Attica/attica/providermanager.h
/usr/include/KF5/Attica/attica/publisher.h
/usr/include/KF5/Attica/attica/publisherfield.h
/usr/include/KF5/Attica/attica/putjob.h
/usr/include/KF5/Attica/attica/remoteaccount.h
/usr/include/KF5/Attica/attica/topic.h
/usr/include/KF5/Attica/attica/version.h