diff --git a/Doc/library/sys.rst b/Doc/library/sys.rst
index 087a3454c33272..d651cc28cf79cd 100644
--- a/Doc/library/sys.rst
+++ b/Doc/library/sys.rst
@@ -1666,7 +1666,7 @@ always available.
       ``'opcode'`` event type added; :attr:`~frame.f_trace_lines` and
       :attr:`~frame.f_trace_opcodes` attributes added to frames
 
-.. function:: set_asyncgen_hooks([firstiter] [, finalizer])
+.. function:: set_asyncgen_hooks(*, firstiter=None, finalizer=None)
 
    Accepts two optional keyword arguments which are callables that accept an
    :term:`asynchronous generator iterator` as an argument. The *firstiter*
diff --git a/Include/internal/pycore_global_objects_fini_generated.h b/Include/internal/pycore_global_objects_fini_generated.h
index d2287687181450..20568d9582a1f3 100644
--- a/Include/internal/pycore_global_objects_fini_generated.h
+++ b/Include/internal/pycore_global_objects_fini_generated.h
@@ -946,7 +946,9 @@ _PyStaticObjects_CheckRefcnt(PyInterpreterState *interp) {
     _PyStaticObject_CheckRefcnt((PyObject *)&_Py_ID(filter));
     _PyStaticObject_CheckRefcnt((PyObject *)&_Py_ID(filters));
     _PyStaticObject_CheckRefcnt((PyObject *)&_Py_ID(final));
+    _PyStaticObject_CheckRefcnt((PyObject *)&_Py_ID(finalizer));
     _PyStaticObject_CheckRefcnt((PyObject *)&_Py_ID(find_class));
+    _PyStaticObject_CheckRefcnt((PyObject *)&_Py_ID(firstiter));
     _PyStaticObject_CheckRefcnt((PyObject *)&_Py_ID(fix_imports));
     _PyStaticObject_CheckRefcnt((PyObject *)&_Py_ID(flags));
     _PyStaticObject_CheckRefcnt((PyObject *)&_Py_ID(flush));
diff --git a/Include/internal/pycore_global_strings.h b/Include/internal/pycore_global_strings.h
index fb9ec44d3f52aa..f7cdb68e98d7b7 100644
--- a/Include/internal/pycore_global_strings.h
+++ b/Include/internal/pycore_global_strings.h
@@ -435,7 +435,9 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(filter)
         STRUCT_FOR_ID(filters)
         STRUCT_FOR_ID(final)
+        STRUCT_FOR_ID(finalizer)
         STRUCT_FOR_ID(find_class)
+        STRUCT_FOR_ID(firstiter)
         STRUCT_FOR_ID(fix_imports)
         STRUCT_FOR_ID(flags)
         STRUCT_FOR_ID(flush)
diff --git a/Include/internal/pycore_runtime_init_generated.h b/Include/internal/pycore_runtime_init_generated.h
index 658bf8030f661d..a4892f81dd7afa 100644
--- a/Include/internal/pycore_runtime_init_generated.h
+++ b/Include/internal/pycore_runtime_init_generated.h
@@ -944,7 +944,9 @@ extern "C" {
     INIT_ID(filter), \
     INIT_ID(filters), \
     INIT_ID(final), \
+    INIT_ID(finalizer), \
     INIT_ID(find_class), \
+    INIT_ID(firstiter), \
     INIT_ID(fix_imports), \
     INIT_ID(flags), \
     INIT_ID(flush), \
diff --git a/Include/internal/pycore_unicodeobject_generated.h b/Include/internal/pycore_unicodeobject_generated.h
index d72353d56eae60..58c8b48a3e28fb 100644
--- a/Include/internal/pycore_unicodeobject_generated.h
+++ b/Include/internal/pycore_unicodeobject_generated.h
@@ -1146,9 +1146,15 @@ _PyUnicode_InitStaticStrings(PyInterpreterState *interp) {
     string = &_Py_ID(final);
     assert(_PyUnicode_CheckConsistency(string, 1));
     _PyUnicode_InternInPlace(interp, &string);
+    string = &_Py_ID(finalizer);
+    assert(_PyUnicode_CheckConsistency(string, 1));
+    _PyUnicode_InternInPlace(interp, &string);
     string = &_Py_ID(find_class);
     assert(_PyUnicode_CheckConsistency(string, 1));
     _PyUnicode_InternInPlace(interp, &string);
+    string = &_Py_ID(firstiter);
+    assert(_PyUnicode_CheckConsistency(string, 1));
+    _PyUnicode_InternInPlace(interp, &string);
     string = &_Py_ID(fix_imports);
     assert(_PyUnicode_CheckConsistency(string, 1));
     _PyUnicode_InternInPlace(interp, &string);
diff --git a/Python/clinic/sysmodule.c.h b/Python/clinic/sysmodule.c.h
index 13f4ea81eb8984..89c71ce6f84b34 100644
--- a/Python/clinic/sysmodule.c.h
+++ b/Python/clinic/sysmodule.c.h
@@ -579,6 +579,74 @@ sys_get_coroutine_origin_tracking_depth(PyObject *module, PyObject *Py_UNUSED(ig
     return return_value;
 }
 
+PyDoc_STRVAR(sys_set_asyncgen_hooks__doc__,
+"set_asyncgen_hooks($module, /, firstiter=None, finalizer=None)\n"
+"--\n"
+"\n"
+"Set a finalizer for async generators objects.");
+
+#define SYS_SET_ASYNCGEN_HOOKS_METHODDEF    \
+    {"set_asyncgen_hooks", _PyCFunction_CAST(sys_set_asyncgen_hooks), METH_FASTCALL|METH_KEYWORDS, sys_set_asyncgen_hooks__doc__},
+
+static PyObject *
+sys_set_asyncgen_hooks_impl(PyObject *module, PyObject *firstiter,
+                            PyObject *finalizer);
+
+static PyObject *
+sys_set_asyncgen_hooks(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
+{
+    PyObject *return_value = NULL;
+    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
+
+    #define NUM_KEYWORDS 2
+    static struct {
+        PyGC_Head _this_is_not_used;
+        PyObject_VAR_HEAD
+        PyObject *ob_item[NUM_KEYWORDS];
+    } _kwtuple = {
+        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
+        .ob_item = { &_Py_ID(firstiter), &_Py_ID(finalizer), },
+    };
+    #undef NUM_KEYWORDS
+    #define KWTUPLE (&_kwtuple.ob_base.ob_base)
+
+    #else  // !Py_BUILD_CORE
+    #  define KWTUPLE NULL
+    #endif  // !Py_BUILD_CORE
+
+    static const char * const _keywords[] = {"firstiter", "finalizer", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "set_asyncgen_hooks",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[2];
+    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 0;
+    PyObject *firstiter = Py_None;
+    PyObject *finalizer = Py_None;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 0, 2, 0, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    if (!noptargs) {
+        goto skip_optional_pos;
+    }
+    if (args[0]) {
+        firstiter = args[0];
+        if (!--noptargs) {
+            goto skip_optional_pos;
+        }
+    }
+    finalizer = args[1];
+skip_optional_pos:
+    return_value = sys_set_asyncgen_hooks_impl(module, firstiter, finalizer);
+
+exit:
+    return return_value;
+}
+
 PyDoc_STRVAR(sys_get_asyncgen_hooks__doc__,
 "get_asyncgen_hooks($module, /)\n"
 "--\n"
@@ -1504,4 +1572,4 @@ sys__get_cpu_count_config(PyObject *module, PyObject *Py_UNUSED(ignored))
 #ifndef SYS_GETANDROIDAPILEVEL_METHODDEF
     #define SYS_GETANDROIDAPILEVEL_METHODDEF
 #endif /* !defined(SYS_GETANDROIDAPILEVEL_METHODDEF) */
-/*[clinic end generated code: output=b8b1c53e04c3b20c input=a9049054013a1b77]*/
+/*[clinic end generated code: output=2aa9dd082c0d9464 input=a9049054013a1b77]*/
diff --git a/Python/sysmodule.c b/Python/sysmodule.c
index cd193c1581c679..2abd764309787d 100644
--- a/Python/sysmodule.c
+++ b/Python/sysmodule.c
@@ -1373,19 +1373,20 @@ static PyStructSequence_Desc asyncgen_hooks_desc = {
     2
 };
 
-static PyObject *
-sys_set_asyncgen_hooks(PyObject *self, PyObject *args, PyObject *kw)
-{
-    static char *keywords[] = {"firstiter", "finalizer", NULL};
-    PyObject *firstiter = NULL;
-    PyObject *finalizer = NULL;
+/*[clinic input]
+sys.set_asyncgen_hooks
 
-    if (!PyArg_ParseTupleAndKeywords(
-            args, kw, "|OO", keywords,
-            &firstiter, &finalizer)) {
-        return NULL;
-    }
+    firstiter: object = None
+    finalizer: object = None
+
+Set a finalizer for async generators objects.
+[clinic start generated code]*/
 
+static PyObject *
+sys_set_asyncgen_hooks_impl(PyObject *module, PyObject *firstiter,
+                            PyObject *finalizer)
+/*[clinic end generated code: output=6fe3b2dd3f9a9db5 input=3664f349bc833d43]*/
+{
     if (finalizer && finalizer != Py_None) {
         if (!PyCallable_Check(finalizer)) {
             PyErr_Format(PyExc_TypeError,
@@ -1419,12 +1420,6 @@ sys_set_asyncgen_hooks(PyObject *self, PyObject *args, PyObject *kw)
     Py_RETURN_NONE;
 }
 
-PyDoc_STRVAR(set_asyncgen_hooks_doc,
-"set_asyncgen_hooks([firstiter] [, finalizer])\n\
-\n\
-Set a finalizer for async generators objects."
-);
-
 /*[clinic input]
 sys.get_asyncgen_hooks
 
@@ -2536,8 +2531,7 @@ static PyMethodDef sys_methods[] = {
     SYS__DEBUGMALLOCSTATS_METHODDEF
     SYS_SET_COROUTINE_ORIGIN_TRACKING_DEPTH_METHODDEF
     SYS_GET_COROUTINE_ORIGIN_TRACKING_DEPTH_METHODDEF
-    {"set_asyncgen_hooks", _PyCFunction_CAST(sys_set_asyncgen_hooks),
-     METH_VARARGS | METH_KEYWORDS, set_asyncgen_hooks_doc},
+    SYS_SET_ASYNCGEN_HOOKS_METHODDEF
     SYS_GET_ASYNCGEN_HOOKS_METHODDEF
     SYS_GETANDROIDAPILEVEL_METHODDEF
     SYS_ACTIVATE_STACK_TRAMPOLINE_METHODDEF