/usr/share/SuperCollider/SCClassLibrary/Common/Collections/ is in supercollider-common 1:3.4.5-1wheezy1.
This file is owned by root:root, with mode 0o755.
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/usr/share/SuperCollider/SCClassLibrary/Common/Collections/Array.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/Array2D.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/ArrayedCollection.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/Association.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/Bag.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/Collection.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/Dictionary.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/Environment.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/EnvironmentRedirect.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/Event.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/EventTypesWithCleanup.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/Harmonics.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/Interval.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/Library.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/LinkedList.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/List.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/ObjectTable.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/Pair.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/PriorityQueue.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/RingBuffer.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/Scale.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/SequenceableCollection.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/Set.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/SortedList.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/SparseArray.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/String.sc
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/linux/
/usr/share/SuperCollider/SCClassLibrary/Common/Collections/linux/extString_linux.sc