/usr/lib/one/sunstone/models/ is in opennebula-sunstone 4.12.3+dfsg-3.1build1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/one/sunstone/models/OpenNebulaJSON/
/usr/lib/one/sunstone/models/OpenNebulaJSON.rb
/usr/lib/one/sunstone/models/OpenNebulaJSON/AclJSON.rb
/usr/lib/one/sunstone/models/OpenNebulaJSON/ClusterJSON.rb
/usr/lib/one/sunstone/models/OpenNebulaJSON/DatastoreJSON.rb
/usr/lib/one/sunstone/models/OpenNebulaJSON/GroupJSON.rb
/usr/lib/one/sunstone/models/OpenNebulaJSON/HostJSON.rb
/usr/lib/one/sunstone/models/OpenNebulaJSON/ImageJSON.rb
/usr/lib/one/sunstone/models/OpenNebulaJSON/JSONUtils.rb
/usr/lib/one/sunstone/models/OpenNebulaJSON/PoolJSON.rb
/usr/lib/one/sunstone/models/OpenNebulaJSON/SecurityGroupJSON.rb
/usr/lib/one/sunstone/models/OpenNebulaJSON/TemplateJSON.rb
/usr/lib/one/sunstone/models/OpenNebulaJSON/UserJSON.rb
/usr/lib/one/sunstone/models/OpenNebulaJSON/VdcJSON.rb
/usr/lib/one/sunstone/models/OpenNebulaJSON/VirtualMachineJSON.rb
/usr/lib/one/sunstone/models/OpenNebulaJSON/VirtualNetworkJSON.rb
/usr/lib/one/sunstone/models/OpenNebulaJSON/ZoneJSON.rb
/usr/lib/one/sunstone/models/SunstoneMarketplace.rb
/usr/lib/one/sunstone/models/SunstoneServer.rb
/usr/lib/one/sunstone/models/SunstoneViews.rb