/usr/lib/ocaml/result/result.ml is in libresult-ocaml-dev 1.2-1build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | type ('a, 'b) result = ('a, 'b) Pervasives.result = Ok of 'a | Error of 'b
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