expose NoExtraItems via _typing

Author: angela-tarantula

Include/internal/pycore_typevarobject.h

@@ -21,6 +21,8 @@ extern int _Py_typing_type_repr(PyUnicodeWriter *, PyObject *);
 extern PyTypeObject _PyTypeAlias_Type;
 extern PyTypeObject _PyNoDefault_Type;
 extern PyObject _Py_NoDefaultStruct;
+extern PyTypeObject _PyNoExtraItems_Type;
+extern PyObject _Py_NoExtraItemsStruct;
 
 #ifdef __cplusplus
 }

Modules/_typingmodule.c

@@ -70,6 +70,9 @@ _typing_exec(PyObject *m)
     if (PyModule_AddObjectRef(m, "NoDefault", (PyObject *)&_Py_NoDefaultStruct) < 0) {
         return -1;
     }
+    if (PyModule_AddObjectRef(m, "NoExtraItems", (PyObject *)&_Py_NoExtraItemsStruct) < 0) {
+        return -1;
+    }
     return 0;
 }