Add Petr and Christian's comments.

Author: shihai1991

Doc/c-api/tuple.rst

@@ -123,6 +123,9 @@ type.
 
    Create and return a new struct sequence type from the *desc*.
    This function is similar to :c:func:`PyStructSequence_NewType`.
+   The *module* argument is associated with the new type and can be retrieved
+   with :c:func:`PyType_GetModule`. It must be a module object or ``NULL``.
+   The *tp_flags* argument is used to set :c:member:`PyTypeObject.tp_flags`.
 
    .. versionadded:: 3.11
 

Misc/NEWS.d/next/C API/2021-09-26-23-05-34.bpo-45113.oePRV8.rst

@@ -1,2 +1,2 @@
 Add a new :c:func:`PyStructSequence_FromModuleAndDesc` function to create a new
-struct sequence type in heap.
+struct sequence type on the heap.

Objects/structseq.c

@@ -570,13 +570,12 @@ PyStructSequence_FromModuleAndDesc(PyObject *module,
     spec.flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | tp_flags;
     spec.slots = slots;
 
-    type = (PyTypeObject *)PyType_FromSpecWithBases(&spec,
+    type = (PyTypeObject *)PyType_FromModuleAndSpec(module, &spec,
         (PyObject *)&PyTuple_Type);
     PyMem_Free(members);
     if (type == NULL) {
         return NULL;
     }
-    ((PyHeapTypeObject *)type)->ht_module = Py_XNewRef(module);
 
     if (initialize_structseq_dict(
             desc, type->tp_dict, n_members, n_unnamed_members) < 0) {