Currently, in typeshed's CI, stubtest isn't detecting that sys.monitoring is missing from typeshed. Even if you add sys.monitoring stubs to typeshed, stubtest doesn't verify that any of the details about sys.monitoring are correct, since sys.monitoring is somewhat unique: it's a genuine instance of types.ModuleType in the global namespace of the sys module, but import sys.monitoring will fail at runtime (sys isn't a package).

I verified locally that these changes cause stubtest to start complaining about sys.monitoring being missing with typeshed's current setup; and, if python/typeshed#10890 were merged, these changes here would cause stubtest to start complaining if there were any inaccuracies between the runtime and the stubs for sys.monitoring