Issue #15042: Add PyState_AddModule and PyState_RemoveModule.
Add version  guard for Py_LIMITED_API additions.
Issue #15081: Document PyState_FindModule.
Patch by Robin Schreiber.
diff --git a/PC/python3.def b/PC/python3.def
index 54b288f..0c9e25c 100644
--- a/PC/python3.def
+++ b/PC/python3.def
@@ -471,6 +471,8 @@
   PySlice_Type=python33.PySlice_Type DATA
   PySortWrapper_Type=python33.PySortWrapper_Type DATA
   PyState_FindModule=python33.PyState_FindModule
+  PyState_AddModule=python33.PyState_AddModule
+  PyState_RemoveModule=python33.PyState_RemoveModule
   PyStructSequence_GetItem=python33.PyStructSequence_GetItem
   PyStructSequence_New=python33.PyStructSequence_New
   PyStructSequence_NewType=python33.PyStructSequence_NewType