adapter.py is over the 2000-line target and frozen at its main size by the
code-health ratchet; the local import + named context variable grew it by 3
lines. A module-level import and calling the cached accessor at each use site
(it returns the same identity) keeps the change net-zero, and the test now
patches the name where production reads it.
Co-authored-by: luwen <142317085+LuwenOosten@users.noreply.github.com>
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