Since #91318 the faster CPython folks have added a few more code paths where a METH_NOARGS or METH_O function may be called. These also need call trampolines for the same reason. For instance, the bitarray package when built for Emscripten will hit these code paths with oddly shaped functions causes indirect call signature mismatch errors.

Linked PRs

• [3.11] GH-99460: Emscripten trampolines on optimized METH_O and METH_NOARGS code paths (gh-99461) #99514