/usr/lib/ocaml/deriving/META is in libderiving-ocaml 0.1.1a-3build5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | version = "0.1.1a-3build5"
name = "deriving"
description = "deriving functions"
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