/usr/ is in libassimp-dev 3.2~dfsg-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/libassimp-dev/
/usr/share/doc/libassimp-dev/copyright
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/assimp-3.2/
/usr/lib/x86_64-linux-gnu/cmake/assimp-3.2/assimp-config-version.cmake
/usr/lib/x86_64-linux-gnu/cmake/assimp-3.2/assimp-config.cmake
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/assimp.pc
/usr/include/
/usr/include/assimp/
/usr/include/assimp/material.h
/usr/include/assimp/Compiler/
/usr/include/assimp/Compiler/pushpack1.h
/usr/include/assimp/Compiler/poppack1.h
/usr/include/assimp/Compiler/pstdint.h
/usr/include/assimp/defs.h
/usr/include/assimp/light.h
/usr/include/assimp/quaternion.h
/usr/include/assimp/Importer.hpp
/usr/include/assimp/vector2.h
/usr/include/assimp/color4.h
/usr/include/assimp/metadata.h
/usr/include/assimp/vector3.inl
/usr/include/assimp/ProgressHandler.hpp
/usr/include/assimp/ai_assert.h
/usr/include/assimp/matrix3x3.inl
/usr/include/assimp/material.inl
/usr/include/assimp/Logger.hpp
/usr/include/assimp/anim.h
/usr/include/assimp/IOSystem.hpp
/usr/include/assimp/matrix3x3.h
/usr/include/assimp/config.h
/usr/include/assimp/LogStream.hpp
/usr/include/assimp/types.h
/usr/include/assimp/texture.h
/usr/include/assimp/cimport.h
/usr/include/assimp/camera.h
/usr/include/assimp/color4.inl
/usr/include/assimp/matrix4x4.h
/usr/include/assimp/scene.h
/usr/include/assimp/postprocess.h
/usr/include/assimp/cfileio.h
/usr/include/assimp/IOStream.hpp
/usr/include/assimp/vector2.inl
/usr/include/assimp/matrix4x4.inl
/usr/include/assimp/DefaultLogger.hpp
/usr/include/assimp/vector3.h
/usr/include/assimp/version.h
/usr/include/assimp/Exporter.hpp
/usr/include/assimp/cexport.h
/usr/include/assimp/NullLogger.hpp
/usr/include/assimp/quaternion.inl
/usr/include/assimp/mesh.h
/usr/include/assimp/importerdesc.h
/usr/share/doc/libassimp-dev/CREDITS.gz
/usr/share/doc/libassimp-dev/README
/usr/share/doc/libassimp-dev/changelog.Debian.gz
/usr/lib/x86_64-linux-gnu/libassimp.so