gh-96002: Add functional test for Argument Clinic (#96178)

Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>

3 files changed, 3244 insertions, 0 deletions

diff --git a/Modules/Setup.stdlib.in b/Modules/Setup.stdlib.in
index 6747d97..7307d37 100644
--- a/Modules/Setup.stdlib.in
+++ b/Modules/Setup.stdlib.in
@@ -170,6 +170,7 @@
 @MODULE__TESTBUFFER_TRUE@_testbuffer _testbuffer.c
 @MODULE__TESTINTERNALCAPI_TRUE@_testinternalcapi _testinternalcapi.c
 @MODULE__TESTCAPI_TRUE@_testcapi _testcapimodule.c _testcapi/vectorcall.c _testcapi/vectorcall_limited.c _testcapi/heaptype.c _testcapi/unicode.c _testcapi/getargs.c _testcapi/pytime.c _testcapi/datetime.c _testcapi/docstring.c _testcapi/mem.c _testcapi/watchers.c _testcapi/long.c _testcapi/float.c
+@MODULE__TESTCLINIC_TRUE@_testclinic _testclinic.c
 
 # Some testing modules MUST be built as shared libraries.
 *shared*
diff --git a/Modules/_testclinic.c b/Modules/_testclinic.c
new file mode 100644
index 0000000..c9858e9
--- /dev/null
+++ b/Modules/_testclinic.c
@@ -0,0 +1,952 @@
+#ifndef Py_BUILD_CORE_BUILTIN
+#  define Py_BUILD_CORE_MODULE 1
+#endif
+
+/* Always enable assertions */
+#undef NDEBUG
+
+#define PY_SSIZE_T_CLEAN
+
+#include "Python.h"
+
+#include "clinic/_testclinic.c.h"
+
+
+/* Pack arguments to a tuple, implicitly increase all the arguments' refcount.
+ * NULL arguments will be replaced to Py_None. */
+static PyObject *
+pack_arguments_newref(int argc, ...)
+{
+    assert(!PyErr_Occurred());
+    PyObject *tuple = PyTuple_New(argc);
+    if (!tuple) {
+        return NULL;
+    }
+
+    va_list vargs;
+    va_start(vargs, argc);
+    for (int i = 0; i < argc; i++) {
+        PyObject *arg = va_arg(vargs, PyObject *);
+        if (arg) {
+            if (_PyObject_IsFreed(arg)) {
+                PyErr_Format(PyExc_AssertionError,
+                             "argument %d at %p is freed or corrupted!",
+                             i, arg);
+                va_end(vargs);
+                Py_DECREF(tuple);
+                return NULL;
+            }
+        }
+        else {
+            arg = Py_None;
+        }
+        PyTuple_SET_ITEM(tuple, i, Py_NewRef(arg));
+    }
+    va_end(vargs);
+    return tuple;
+}
+
+/* Pack arguments to a tuple.
+ * `wrapper` is function which converts primitive type to PyObject.
+ * `arg_type` is type that arguments should be converted to before wrapped. */
+#define RETURN_PACKED_ARGS(argc, wrapper, arg_type, ...) do { \
+        assert(!PyErr_Occurred()); \
+        arg_type in[argc] = {__VA_ARGS__}; \
+        PyObject *out[argc] = {NULL,}; \
+        for (int _i = 0; _i < argc; _i++) { \
+            out[_i] = wrapper(in[_i]); \
+            assert(out[_i] || PyErr_Occurred()); \
+            if (!out[_i]) { \
+                for (int _j = 0; _j < _i; _j++) { \
+                    Py_DECREF(out[_j]); \
+                } \
+                return NULL; \
+            } \
+        } \
+        PyObject *tuple = PyTuple_New(argc); \
+        if (!tuple) { \
+            for (int _i = 0; _i < argc; _i++) { \
+                Py_DECREF(out[_i]); \
+            } \
+            return NULL; \
+        } \
+        for (int _i = 0; _i < argc; _i++) { \
+            PyTuple_SET_ITEM(tuple, _i, out[_i]); \
+        } \
+        return tuple; \
+    } while (0)
+
+
+/*[clinic input]
+module  _testclinic
+[clinic start generated code]*/
+/*[clinic end generated code: output=da39a3ee5e6b4b0d input=d4981b80d6efdb12]*/
+
+
+/*[clinic input]
+test_empty_function
+
+[clinic start generated code]*/
+
+static PyObject *
+test_empty_function_impl(PyObject *module)
+/*[clinic end generated code: output=0f8aeb3ddced55cb input=0dd7048651ad4ae4]*/
+{
+    Py_RETURN_NONE;
+}
+
+
+/*[clinic input]
+objects_converter
+
+    a: object
+    b: object = NULL
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+objects_converter_impl(PyObject *module, PyObject *a, PyObject *b)
+/*[clinic end generated code: output=3f9c9415ec86c695 input=1533b1bd94187de4]*/
+{
+    return pack_arguments_newref(2, a, b);
+}
+
+
+/*[clinic input]
+bytes_object_converter
+
+    a: PyBytesObject
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+bytes_object_converter_impl(PyObject *module, PyBytesObject *a)
+/*[clinic end generated code: output=7732da869d74b784 input=94211751e7996236]*/
+{
+    if (!PyBytes_Check(a)) {
+        PyErr_SetString(PyExc_AssertionError,
+                        "argument a is not a PyBytesObject");
+        return NULL;
+    }
+    return pack_arguments_newref(1, a);
+}
+
+
+/*[clinic input]
+byte_array_object_converter
+
+    a: PyByteArrayObject
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+byte_array_object_converter_impl(PyObject *module, PyByteArrayObject *a)
+/*[clinic end generated code: output=51f15c76f302b1f7 input=b04d253db51c6f56]*/
+{
+    if (!PyByteArray_Check(a)) {
+        PyErr_SetString(PyExc_AssertionError,
+                        "argument a is not a PyByteArrayObject");
+        return NULL;
+    }
+    return pack_arguments_newref(1, a);
+}
+
+
+/*[clinic input]
+unicode_converter
+
+    a: unicode
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+unicode_converter_impl(PyObject *module, PyObject *a)
+/*[clinic end generated code: output=1b4a4adbb6ac6e34 input=de7b5adbf07435ba]*/
+{
+    if (!PyUnicode_Check(a)) {
+        PyErr_SetString(PyExc_AssertionError,
+                        "argument a is not a unicode object");
+        return NULL;
+    }
+    return pack_arguments_newref(1, a);
+}
+
+
+/*[clinic input]
+bool_converter
+
+    a: bool = True
+    b: bool(accept={object}) = True
+    c: bool(accept={int}) = True
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+bool_converter_impl(PyObject *module, int a, int b, int c)
+/*[clinic end generated code: output=17005b0c29afd590 input=7f6537705b2f32f4]*/
+{
+    PyObject *obj_a = a ? Py_True : Py_False;
+    PyObject *obj_b = b ? Py_True : Py_False;
+    PyObject *obj_c = c ? Py_True : Py_False;
+    return pack_arguments_newref(3, obj_a, obj_b, obj_c);
+}
+
+
+/*[clinic input]
+char_converter
+
+    a: char = b'A'
+    b: char = b'\a'
+    c: char = b'\b'
+    d: char = b'\t'
+    e: char = b'\n'
+    f: char = b'\v'
+    g: char = b'\f'
+    h: char = b'\r'
+    i: char = b'"'
+    j: char = b"'"
+    k: char = b'?'
+    l: char = b'\\'
+    m: char = b'\000'
+    n: char = b'\377'
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+char_converter_impl(PyObject *module, char a, char b, char c, char d, char e,
+                    char f, char g, char h, char i, char j, char k, char l,
+                    char m, char n)
+/*[clinic end generated code: output=f929dbd2e55a9871 input=b601bc5bc7fe85e3]*/
+{
+    RETURN_PACKED_ARGS(14, PyLong_FromUnsignedLong, unsigned char,
+                       a, b, c, d, e, f, g, h, i, j, k, l, m, n);
+}
+
+
+/*[clinic input]
+unsigned_char_converter
+
+    a: unsigned_char = 12
+    b: unsigned_char(bitwise=False) = 34
+    c: unsigned_char(bitwise=True) = 56
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+unsigned_char_converter_impl(PyObject *module, unsigned char a,
+                             unsigned char b, unsigned char c)
+/*[clinic end generated code: output=490af3b39ce0b199 input=e859502fbe0b3185]*/
+{
+    RETURN_PACKED_ARGS(3, PyLong_FromUnsignedLong, unsigned char, a, b, c);
+}
+
+
+/*[clinic input]
+short_converter
+
+    a: short = 12
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+short_converter_impl(PyObject *module, short a)
+/*[clinic end generated code: output=1ebb7ddb64248988 input=b4e2309a66f650ae]*/
+{
+    RETURN_PACKED_ARGS(1, PyLong_FromLong, long, a);
+}
+
+
+/*[clinic input]
+unsigned_short_converter
+
+    a: unsigned_short = 12
+    b: unsigned_short(bitwise=False) = 34
+    c: unsigned_short(bitwise=True) = 56
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+unsigned_short_converter_impl(PyObject *module, unsigned short a,
+                              unsigned short b, unsigned short c)
+/*[clinic end generated code: output=5f92cc72fc8707a7 input=9d15cd11e741d0c6]*/
+{
+    RETURN_PACKED_ARGS(3, PyLong_FromUnsignedLong, unsigned long, a, b, c);
+}
+
+
+/*[clinic input]
+int_converter
+
+    a: int = 12
+    b: int(accept={int}) = 34
+    c: int(accept={str}) = 45
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+int_converter_impl(PyObject *module, int a, int b, int c)
+/*[clinic end generated code: output=8e56b59be7d0c306 input=a1dbc6344853db7a]*/
+{
+    RETURN_PACKED_ARGS(3, PyLong_FromLong, long, a, b, c);
+}
+
+
+/*[clinic input]
+unsigned_int_converter
+
+    a: unsigned_int = 12
+    b: unsigned_int(bitwise=False) = 34
+    c: unsigned_int(bitwise=True) = 56
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+unsigned_int_converter_impl(PyObject *module, unsigned int a, unsigned int b,
+                            unsigned int c)
+/*[clinic end generated code: output=399a57a05c494cc7 input=8427ed9a3f96272d]*/
+{
+    RETURN_PACKED_ARGS(3, PyLong_FromUnsignedLong, unsigned long, a, b, c);
+}
+
+
+/*[clinic input]
+long_converter
+
+    a: long = 12
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+long_converter_impl(PyObject *module, long a)
+/*[clinic end generated code: output=9663d936a652707a input=84ad0ef28f24bd85]*/
+{
+    RETURN_PACKED_ARGS(1, PyLong_FromLong, long, a);
+}
+
+
+/*[clinic input]
+unsigned_long_converter
+
+    a: unsigned_long = 12
+    b: unsigned_long(bitwise=False) = 34
+    c: unsigned_long(bitwise=True) = 56
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+unsigned_long_converter_impl(PyObject *module, unsigned long a,
+                             unsigned long b, unsigned long c)
+/*[clinic end generated code: output=120b82ea9ebd93a8 input=440dd6f1817f5d91]*/
+{
+    RETURN_PACKED_ARGS(3, PyLong_FromUnsignedLong, unsigned long, a, b, c);
+}
+
+
+/*[clinic input]
+long_long_converter
+
+    a: long_long = 12
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+long_long_converter_impl(PyObject *module, long long a)
+/*[clinic end generated code: output=5fb5f2220770c3e1 input=730fcb3eecf4d993]*/
+{
+    RETURN_PACKED_ARGS(1, PyLong_FromLongLong, long long, a);
+}
+
+
+/*[clinic input]
+unsigned_long_long_converter
+
+    a: unsigned_long_long = 12
+    b: unsigned_long_long(bitwise=False) = 34
+    c: unsigned_long_long(bitwise=True) = 56
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+unsigned_long_long_converter_impl(PyObject *module, unsigned long long a,
+                                  unsigned long long b, unsigned long long c)
+/*[clinic end generated code: output=65b7273e63501762 input=300737b0bdb230e9]*/
+{
+    RETURN_PACKED_ARGS(3, PyLong_FromUnsignedLongLong, unsigned long long,
+                       a, b, c);
+}
+
+
+/*[clinic input]
+py_ssize_t_converter
+
+    a: Py_ssize_t = 12
+    b: Py_ssize_t(accept={int}) = 34
+    c: Py_ssize_t(accept={int, NoneType}) = 56
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+py_ssize_t_converter_impl(PyObject *module, Py_ssize_t a, Py_ssize_t b,
+                          Py_ssize_t c)
+/*[clinic end generated code: output=ce252143e0ed0372 input=76d0f342e9317a1f]*/
+{
+    RETURN_PACKED_ARGS(3, PyLong_FromSsize_t, Py_ssize_t, a, b, c);
+}
+
+
+/*[clinic input]
+slice_index_converter
+
+    a: slice_index = 12
+    b: slice_index(accept={int}) = 34
+    c: slice_index(accept={int, NoneType}) = 56
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+slice_index_converter_impl(PyObject *module, Py_ssize_t a, Py_ssize_t b,
+                           Py_ssize_t c)
+/*[clinic end generated code: output=923c6cac77666a6b input=64f99f3f83265e47]*/
+{
+    RETURN_PACKED_ARGS(3, PyLong_FromSsize_t, Py_ssize_t, a, b, c);
+}
+
+
+/*[clinic input]
+size_t_converter
+
+    a: size_t = 12
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+size_t_converter_impl(PyObject *module, size_t a)
+/*[clinic end generated code: output=412b5b7334ab444d input=83ae7d9171fbf208]*/
+{
+    RETURN_PACKED_ARGS(1, PyLong_FromSize_t, size_t, a);
+}
+
+
+/*[clinic input]
+float_converter
+
+    a: float = 12.5
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+float_converter_impl(PyObject *module, float a)
+/*[clinic end generated code: output=1c98f64f2cf1d55c input=a625b59ad68047d8]*/
+{
+    RETURN_PACKED_ARGS(1, PyFloat_FromDouble, double, a);
+}
+
+
+/*[clinic input]
+double_converter
+
+    a: double = 12.5
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+double_converter_impl(PyObject *module, double a)
+/*[clinic end generated code: output=a4e8532d284d035d input=098df188f24e7c62]*/
+{
+    RETURN_PACKED_ARGS(1, PyFloat_FromDouble, double, a);
+}
+
+
+/*[clinic input]
+py_complex_converter
+
+    a: Py_complex
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+py_complex_converter_impl(PyObject *module, Py_complex a)
+/*[clinic end generated code: output=9e6ca2eb53b14846 input=e9148a8ca1dbf195]*/
+{
+    RETURN_PACKED_ARGS(1, PyComplex_FromCComplex, Py_complex, a);
+}
+
+
+/*[clinic input]
+str_converter
+
+    a: str = "a"
+    b: str(accept={robuffer}) = "b"
+    c: str(accept={robuffer, str}, zeroes=True) = "c"
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+str_converter_impl(PyObject *module, const char *a, const char *b,
+                   const char *c, Py_ssize_t c_length)
+/*[clinic end generated code: output=475bea40548c8cd6 input=bff2656c92ee25de]*/
+{
+    assert(!PyErr_Occurred());
+    PyObject *out[3] = {NULL,};
+    int i = 0;
+    PyObject *arg;
+
+    arg = PyUnicode_FromString(a);
+    assert(arg || PyErr_Occurred());
+    if (!arg) {
+        goto error;
+    }
+    out[i++] = arg;
+
+    arg = PyUnicode_FromString(b);
+    assert(arg || PyErr_Occurred());
+    if (!arg) {
+        goto error;
+    }
+    out[i++] = arg;
+
+    arg = PyUnicode_FromStringAndSize(c, c_length);
+    assert(arg || PyErr_Occurred());
+    if (!arg) {
+        goto error;
+    }
+    out[i++] = arg;
+
+    PyObject *tuple = PyTuple_New(3);
+    if (!tuple) {
+        goto error;
+    }
+    for (int j = 0; j < 3; j++) {
+        PyTuple_SET_ITEM(tuple, j, out[j]);
+    }
+    return tuple;
+
+error:
+    for (int j = 0; j < i; j++) {
+        Py_DECREF(out[j]);
+    }
+    return NULL;
+}
+
+
+static PyObject *
+bytes_from_buffer(Py_buffer *buf)
+{
+    PyObject *bytes_obj = PyBytes_FromStringAndSize(NULL, buf->len);
+    if (!bytes_obj) {
+        return NULL;
+    }
+    void *bytes_obj_buf = ((PyBytesObject *)bytes_obj)->ob_sval;
+    if (PyBuffer_ToContiguous(bytes_obj_buf, buf, buf->len, 'C') < 0) {
+        Py_DECREF(bytes_obj);
+        return NULL;
+    }
+    return bytes_obj;
+}
+
+/*[clinic input]
+py_buffer_converter
+
+    a: Py_buffer(accept={str, buffer, NoneType})
+    b: Py_buffer(accept={rwbuffer})
+    /
+
+[clinic start generated code]*/
+
+static PyObject *
+py_buffer_converter_impl(PyObject *module, Py_buffer *a, Py_buffer *b)
+/*[clinic end generated code: output=52fb13311e3d6d03 input=775de727de5c7421]*/
+{
+    RETURN_PACKED_ARGS(2, bytes_from_buffer, Py_buffer *, a, b);
+}
+
+
+/*[clinic input]
+keywords
+
+    a: object
+    b: object
+
+[clinic start generated code]*/
+
+static PyObject *
+keywords_impl(PyObject *module, PyObject *a, PyObject *b)
+/*[clinic end generated code: output=850aaed53e26729e input=f44b89e718c1a93b]*/
+{
+    return pack_arguments_newref(2, a, b);
+}
+
+
+/*[clinic input]
+keywords_kwonly
+
+    a: object
+    *
+    b: object
+
+[clinic start generated code]*/
+
+static PyObject *
+keywords_kwonly_impl(PyObject *module, PyObject *a, PyObject *b)
+/*[clinic end generated code: output=a45c48241da584dc input=1f08e39c3312b015]*/
+{
+    return pack_arguments_newref(2, a, b);
+}
+
+
+/*[clinic input]
+keywords_opt
+
+    a: object
+    b: object = None
+    c: object = None
+
+[clinic start generated code]*/
+
+static PyObject *
+keywords_opt_impl(PyObject *module, PyObject *a, PyObject *b, PyObject *c)
+/*[clinic end generated code: output=25e4b67d91c76a66 input=b0ba0e4f04904556]*/
+{
+    return pack_arguments_newref(3, a, b, c);
+}
+
+
+/*[clinic input]
+keywords_opt_kwonly
+
+    a: object
+    b: object = None
+    *
+    c: object = None
+    d: object = None
+
+[clinic start generated code]*/
+
+static PyObject *
+keywords_opt_kwonly_impl(PyObject *module, PyObject *a, PyObject *b,
+                         PyObject *c, PyObject *d)
+/*[clinic end generated code: output=6aa5b655a6e9aeb0 input=f79da689d6c51076]*/
+{
+    return pack_arguments_newref(4, a, b, c, d);
+}
+
+
+/*[clinic input]
+keywords_kwonly_opt
+
+    a: object
+    *
+    b: object = None
+    c: object = None
+
+[clinic start generated code]*/
+
+static PyObject *
+keywords_kwonly_opt_impl(PyObject *module, PyObject *a, PyObject *b,
+                         PyObject *c)
+/*[clinic end generated code: output=707f78eb0f55c2b1 input=e0fa1a0e46dca791]*/
+{
+    return pack_arguments_newref(3, a, b, c);
+}
+
+
+/*[clinic input]
+posonly_keywords
+
+    a: object
+    /
+    b: object
+
+[clinic start generated code]*/
+
+static PyObject *
+posonly_keywords_impl(PyObject *module, PyObject *a, PyObject *b)
+/*[clinic end generated code: output=6ac88f4a5f0bfc8d input=fde0a2f79fe82b06]*/
+{
+    return pack_arguments_newref(2, a, b);
+}
+
+
+/*[clinic input]
+posonly_kwonly
+
+    a: object
+    /
+    *
+    b: object
+
+[clinic start generated code]*/
+
+static PyObject *
+posonly_kwonly_impl(PyObject *module, PyObject *a, PyObject *b)
+/*[clinic end generated code: output=483e6790d3482185 input=78b3712768da9a19]*/
+{
+    return pack_arguments_newref(2, a, b);
+}
+
+
+/*[clinic input]
+posonly_keywords_kwonly
+
+    a: object
+    /
+    b: object
+    *
+    c: object
+
+[clinic start generated code]*/
+
+static PyObject *
+posonly_keywords_kwonly_impl(PyObject *module, PyObject *a, PyObject *b,
+                             PyObject *c)
+/*[clinic end generated code: output=2fae573e8cc3fad8 input=a1ad5d2295eb803c]*/
+{
+    return pack_arguments_newref(3, a, b, c);
+}
+
+
+/*[clinic input]
+posonly_keywords_opt
+
+    a: object
+    /
+    b: object
+    c: object = None
+    d: object = None
+
+[clinic start generated code]*/
+
+static PyObject *
+posonly_keywords_opt_impl(PyObject *module, PyObject *a, PyObject *b,
+                          PyObject *c, PyObject *d)
+/*[clinic end generated code: output=f5eb66241bcf68fb input=51c10de2a120e279]*/
+{
+    return pack_arguments_newref(4, a, b, c, d);
+}
+
+
+/*[clinic input]
+posonly_opt_keywords_opt
+
+    a: object
+    b: object = None
+    /
+    c: object = None
+    d: object = None
+
+[clinic start generated code]*/
+
+static PyObject *
+posonly_opt_keywords_opt_impl(PyObject *module, PyObject *a, PyObject *b,
+                              PyObject *c, PyObject *d)
+/*[clinic end generated code: output=d54a30e549296ffd input=f408a1de7dfaf31f]*/
+{
+    return pack_arguments_newref(4, a, b, c, d);
+}
+
+
+/*[clinic input]
+posonly_kwonly_opt
+
+    a: object
+    /
+    *
+    b: object
+    c: object = None
+    d: object = None
+
+[clinic start generated code]*/
+
+static PyObject *
+posonly_kwonly_opt_impl(PyObject *module, PyObject *a, PyObject *b,
+                        PyObject *c, PyObject *d)
+/*[clinic end generated code: output=a20503fe36b4fd62 input=3494253975272f52]*/
+{
+    return pack_arguments_newref(4, a, b, c, d);
+}
+
+
+/*[clinic input]
+posonly_opt_kwonly_opt
+
+    a: object
+    b: object = None
+    /
+    *
+    c: object = None
+    d: object = None
+
+[clinic start generated code]*/
+
+static PyObject *
+posonly_opt_kwonly_opt_impl(PyObject *module, PyObject *a, PyObject *b,
+                            PyObject *c, PyObject *d)
+/*[clinic end generated code: output=64f3204a3a0413b6 input=d17516581e478412]*/
+{
+    return pack_arguments_newref(4, a, b, c, d);
+}
+
+
+/*[clinic input]
+posonly_keywords_kwonly_opt
+
+    a: object
+    /
+    b: object
+    *
+    c: object
+    d: object = None
+    e: object = None
+
+[clinic start generated code]*/
+
+static PyObject *
+posonly_keywords_kwonly_opt_impl(PyObject *module, PyObject *a, PyObject *b,
+                                 PyObject *c, PyObject *d, PyObject *e)
+/*[clinic end generated code: output=dbd7e7ddd6257fa0 input=33529f29e97e5adb]*/
+{
+    return pack_arguments_newref(5, a, b, c, d, e);
+}
+
+
+/*[clinic input]
+posonly_keywords_opt_kwonly_opt
+
+    a: object
+    /
+    b: object
+    c: object = None
+    *
+    d: object = None
+    e: object = None
+
+[clinic start generated code]*/
+
+static PyObject *
+posonly_keywords_opt_kwonly_opt_impl(PyObject *module, PyObject *a,
+                                     PyObject *b, PyObject *c, PyObject *d,
+                                     PyObject *e)
+/*[clinic end generated code: output=775d12ae44653045 input=4d4cc62f11441301]*/
+{
+    return pack_arguments_newref(5, a, b, c, d, e);
+}
+
+
+/*[clinic input]
+posonly_opt_keywords_opt_kwonly_opt
+
+    a: object
+    b: object = None
+    /
+    c: object = None
+    *
+    d: object = None
+
+[clinic start generated code]*/
+
+static PyObject *
+posonly_opt_keywords_opt_kwonly_opt_impl(PyObject *module, PyObject *a,
+                                         PyObject *b, PyObject *c,
+                                         PyObject *d)
+/*[clinic end generated code: output=40c6dc422591eade input=3964960a68622431]*/
+{
+    return pack_arguments_newref(4, a, b, c, d);
+}
+
+
+/*[clinic input]
+keyword_only_parameter
+
+    *
+    a: object
+
+[clinic start generated code]*/
+
+static PyObject *
+keyword_only_parameter_impl(PyObject *module, PyObject *a)
+/*[clinic end generated code: output=c454b6ce98232787 input=8d2868b8d0b27bdb]*/
+{
+    return pack_arguments_newref(1, a);
+}
+
+
+static PyMethodDef tester_methods[] = {
+    TEST_EMPTY_FUNCTION_METHODDEF
+    OBJECTS_CONVERTER_METHODDEF
+    BYTES_OBJECT_CONVERTER_METHODDEF
+    BYTE_ARRAY_OBJECT_CONVERTER_METHODDEF
+    UNICODE_CONVERTER_METHODDEF
+    BOOL_CONVERTER_METHODDEF
+    CHAR_CONVERTER_METHODDEF
+    UNSIGNED_CHAR_CONVERTER_METHODDEF
+    SHORT_CONVERTER_METHODDEF
+    UNSIGNED_SHORT_CONVERTER_METHODDEF
+    INT_CONVERTER_METHODDEF
+    UNSIGNED_INT_CONVERTER_METHODDEF
+    LONG_CONVERTER_METHODDEF
+    UNSIGNED_LONG_CONVERTER_METHODDEF
+    LONG_LONG_CONVERTER_METHODDEF
+    UNSIGNED_LONG_LONG_CONVERTER_METHODDEF
+    PY_SSIZE_T_CONVERTER_METHODDEF
+    SLICE_INDEX_CONVERTER_METHODDEF
+    SIZE_T_CONVERTER_METHODDEF
+    FLOAT_CONVERTER_METHODDEF
+    DOUBLE_CONVERTER_METHODDEF
+    PY_COMPLEX_CONVERTER_METHODDEF
+    STR_CONVERTER_METHODDEF
+    PY_BUFFER_CONVERTER_METHODDEF
+    KEYWORDS_METHODDEF
+    KEYWORDS_KWONLY_METHODDEF
+    KEYWORDS_OPT_METHODDEF
+    KEYWORDS_OPT_KWONLY_METHODDEF
+    KEYWORDS_KWONLY_OPT_METHODDEF
+    POSONLY_KEYWORDS_METHODDEF
+    POSONLY_KWONLY_METHODDEF
+    POSONLY_KEYWORDS_KWONLY_METHODDEF
+    POSONLY_KEYWORDS_OPT_METHODDEF
+    POSONLY_OPT_KEYWORDS_OPT_METHODDEF
+    POSONLY_KWONLY_OPT_METHODDEF
+    POSONLY_OPT_KWONLY_OPT_METHODDEF
+    POSONLY_KEYWORDS_KWONLY_OPT_METHODDEF
+    POSONLY_KEYWORDS_OPT_KWONLY_OPT_METHODDEF
+    POSONLY_OPT_KEYWORDS_OPT_KWONLY_OPT_METHODDEF
+    KEYWORD_ONLY_PARAMETER_METHODDEF
+    {NULL, NULL}
+};
+
+static struct PyModuleDef _testclinic_module = {
+    PyModuleDef_HEAD_INIT,
+    .m_name = "_testclinic",
+    .m_size = 0,
+    .m_methods = tester_methods,
+};
+
+PyMODINIT_FUNC
+PyInit__testclinic(void)
+{
+    return PyModule_Create(&_testclinic_module);
+}
+
+#undef RETURN_PACKED_ARGS
diff --git a/Modules/clinic/_testclinic.c.h b/Modules/clinic/_testclinic.c.h
new file mode 100644
index 0000000..b0ac4c2
--- /dev/null
+++ b/Modules/clinic/_testclinic.c.h
@@ -0,0 +1,2291 @@
+/*[clinic input]
+preserve
+[clinic start generated code]*/
+
+#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
+#  include "pycore_gc.h"            // PyGC_Head
+#  include "pycore_runtime.h"       // _Py_ID()
+#endif
+
+
+PyDoc_STRVAR(test_empty_function__doc__,
+"test_empty_function($module, /)\n"
+"--\n"
+"\n");
+
+#define TEST_EMPTY_FUNCTION_METHODDEF    \
+    {"test_empty_function", (PyCFunction)test_empty_function, METH_NOARGS, test_empty_function__doc__},
+
+static PyObject *
+test_empty_function_impl(PyObject *module);
+
+static PyObject *
+test_empty_function(PyObject *module, PyObject *Py_UNUSED(ignored))
+{
+    return test_empty_function_impl(module);
+}
+
+PyDoc_STRVAR(objects_converter__doc__,
+"objects_converter($module, a, b=<unrepresentable>, /)\n"
+"--\n"
+"\n");
+
+#define OBJECTS_CONVERTER_METHODDEF    \
+    {"objects_converter", _PyCFunction_CAST(objects_converter), METH_FASTCALL, objects_converter__doc__},
+
+static PyObject *
+objects_converter_impl(PyObject *module, PyObject *a, PyObject *b);
+
+static PyObject *
+objects_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    PyObject *a;
+    PyObject *b = NULL;
+
+    if (!_PyArg_CheckPositional("objects_converter", nargs, 1, 2)) {
+        goto exit;
+    }
+    a = args[0];
+    if (nargs < 2) {
+        goto skip_optional;
+    }
+    b = args[1];
+skip_optional:
+    return_value = objects_converter_impl(module, a, b);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(bytes_object_converter__doc__,
+"bytes_object_converter($module, a, /)\n"
+"--\n"
+"\n");
+
+#define BYTES_OBJECT_CONVERTER_METHODDEF    \
+    {"bytes_object_converter", (PyCFunction)bytes_object_converter, METH_O, bytes_object_converter__doc__},
+
+static PyObject *
+bytes_object_converter_impl(PyObject *module, PyBytesObject *a);
+
+static PyObject *
+bytes_object_converter(PyObject *module, PyObject *arg)
+{
+    PyObject *return_value = NULL;
+    PyBytesObject *a;
+
+    if (!PyBytes_Check(arg)) {
+        _PyArg_BadArgument("bytes_object_converter", "argument", "bytes", arg);
+        goto exit;
+    }
+    a = (PyBytesObject *)arg;
+    return_value = bytes_object_converter_impl(module, a);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(byte_array_object_converter__doc__,
+"byte_array_object_converter($module, a, /)\n"
+"--\n"
+"\n");
+
+#define BYTE_ARRAY_OBJECT_CONVERTER_METHODDEF    \
+    {"byte_array_object_converter", (PyCFunction)byte_array_object_converter, METH_O, byte_array_object_converter__doc__},
+
+static PyObject *
+byte_array_object_converter_impl(PyObject *module, PyByteArrayObject *a);
+
+static PyObject *
+byte_array_object_converter(PyObject *module, PyObject *arg)
+{
+    PyObject *return_value = NULL;
+    PyByteArrayObject *a;
+
+    if (!PyByteArray_Check(arg)) {
+        _PyArg_BadArgument("byte_array_object_converter", "argument", "bytearray", arg);
+        goto exit;
+    }
+    a = (PyByteArrayObject *)arg;
+    return_value = byte_array_object_converter_impl(module, a);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(unicode_converter__doc__,
+"unicode_converter($module, a, /)\n"
+"--\n"
+"\n");
+
+#define UNICODE_CONVERTER_METHODDEF    \
+    {"unicode_converter", (PyCFunction)unicode_converter, METH_O, unicode_converter__doc__},
+
+static PyObject *
+unicode_converter_impl(PyObject *module, PyObject *a);
+
+static PyObject *
+unicode_converter(PyObject *module, PyObject *arg)
+{
+    PyObject *return_value = NULL;
+    PyObject *a;
+
+    if (!PyUnicode_Check(arg)) {
+        _PyArg_BadArgument("unicode_converter", "argument", "str", arg);
+        goto exit;
+    }
+    if (PyUnicode_READY(arg) == -1) {
+        goto exit;
+    }
+    a = arg;
+    return_value = unicode_converter_impl(module, a);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(bool_converter__doc__,
+"bool_converter($module, a=True, b=True, c=True, /)\n"
+"--\n"
+"\n");
+
+#define BOOL_CONVERTER_METHODDEF    \
+    {"bool_converter", _PyCFunction_CAST(bool_converter), METH_FASTCALL, bool_converter__doc__},
+
+static PyObject *
+bool_converter_impl(PyObject *module, int a, int b, int c);
+
+static PyObject *
+bool_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    int a = 1;
+    int b = 1;
+    int c = 1;
+
+    if (!_PyArg_CheckPositional("bool_converter", nargs, 0, 3)) {
+        goto exit;
+    }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    a = PyObject_IsTrue(args[0]);
+    if (a < 0) {
+        goto exit;
+    }
+    if (nargs < 2) {
+        goto skip_optional;
+    }
+    b = PyObject_IsTrue(args[1]);
+    if (b < 0) {
+        goto exit;
+    }
+    if (nargs < 3) {
+        goto skip_optional;
+    }
+    c = _PyLong_AsInt(args[2]);
+    if (c == -1 && PyErr_Occurred()) {
+        goto exit;
+    }
+skip_optional:
+    return_value = bool_converter_impl(module, a, b, c);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(char_converter__doc__,
+"char_converter($module, a=b\'A\', b=b\'\\x07\', c=b\'\\x08\', d=b\'\\t\', e=b\'\\n\',\n"
+"               f=b\'\\x0b\', g=b\'\\x0c\', h=b\'\\r\', i=b\'\"\', j=b\"\'\", k=b\'?\',\n"
+"               l=b\'\\\\\', m=b\'\\x00\', n=b\'\\xff\', /)\n"
+"--\n"
+"\n");
+
+#define CHAR_CONVERTER_METHODDEF    \
+    {"char_converter", _PyCFunction_CAST(char_converter), METH_FASTCALL, char_converter__doc__},
+
+static PyObject *
+char_converter_impl(PyObject *module, char a, char b, char c, char d, char e,
+                    char f, char g, char h, char i, char j, char k, char l,
+                    char m, char n);
+
+static PyObject *
+char_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    char a = 'A';
+    char b = '\x07';
+    char c = '\x08';
+    char d = '\t';
+    char e = '\n';
+    char f = '\x0b';
+    char g = '\x0c';
+    char h = '\r';
+    char i = '"';
+    char j = '\'';
+    char k = '?';
+    char l = '\\';
+    char m = '\x00';
+    char n = '\xff';
+
+    if (!_PyArg_CheckPositional("char_converter", nargs, 0, 14)) {
+        goto exit;
+    }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    if (PyBytes_Check(args[0]) && PyBytes_GET_SIZE(args[0]) == 1) {
+        a = PyBytes_AS_STRING(args[0])[0];
+    }
+    else if (PyByteArray_Check(args[0]) && PyByteArray_GET_SIZE(args[0]) == 1) {
+        a = PyByteArray_AS_STRING(args[0])[0];
+    }
+    else {
+        _PyArg_BadArgument("char_converter", "argument 1", "a byte string of length 1", args[0]);
+        goto exit;
+    }
+    if (nargs < 2) {
+        goto skip_optional;
+    }
+    if (PyBytes_Check(args[1]) && PyBytes_GET_SIZE(args[1]) == 1) {
+        b = PyBytes_AS_STRING(args[1])[0];
+    }
+    else if (PyByteArray_Check(args[1]) && PyByteArray_GET_SIZE(args[1]) == 1) {
+        b = PyByteArray_AS_STRING(args[1])[0];
+    }
+    else {
+        _PyArg_BadArgument("char_converter", "argument 2", "a byte string of length 1", args[1]);
+        goto exit;
+    }
+    if (nargs < 3) {
+        goto skip_optional;
+    }
+    if (PyBytes_Check(args[2]) && PyBytes_GET_SIZE(args[2]) == 1) {
+        c = PyBytes_AS_STRING(args[2])[0];
+    }
+    else if (PyByteArray_Check(args[2]) && PyByteArray_GET_SIZE(args[2]) == 1) {
+        c = PyByteArray_AS_STRING(args[2])[0];
+    }
+    else {
+        _PyArg_BadArgument("char_converter", "argument 3", "a byte string of length 1", args[2]);
+        goto exit;
+    }
+    if (nargs < 4) {
+        goto skip_optional;
+    }
+    if (PyBytes_Check(args[3]) && PyBytes_GET_SIZE(args[3]) == 1) {
+        d = PyBytes_AS_STRING(args[3])[0];
+    }
+    else if (PyByteArray_Check(args[3]) && PyByteArray_GET_SIZE(args[3]) == 1) {
+        d = PyByteArray_AS_STRING(args[3])[0];
+    }
+    else {
+        _PyArg_BadArgument("char_converter", "argument 4", "a byte string of length 1", args[3]);
+        goto exit;
+    }
+    if (nargs < 5) {
+        goto skip_optional;
+    }
+    if (PyBytes_Check(args[4]) && PyBytes_GET_SIZE(args[4]) == 1) {
+        e = PyBytes_AS_STRING(args[4])[0];
+    }
+    else if (PyByteArray_Check(args[4]) && PyByteArray_GET_SIZE(args[4]) == 1) {
+        e = PyByteArray_AS_STRING(args[4])[0];
+    }
+    else {
+        _PyArg_BadArgument("char_converter", "argument 5", "a byte string of length 1", args[4]);
+        goto exit;
+    }
+    if (nargs < 6) {
+        goto skip_optional;
+    }
+    if (PyBytes_Check(args[5]) && PyBytes_GET_SIZE(args[5]) == 1) {
+        f = PyBytes_AS_STRING(args[5])[0];
+    }
+    else if (PyByteArray_Check(args[5]) && PyByteArray_GET_SIZE(args[5]) == 1) {
+        f = PyByteArray_AS_STRING(args[5])[0];
+    }
+    else {
+        _PyArg_BadArgument("char_converter", "argument 6", "a byte string of length 1", args[5]);
+        goto exit;
+    }
+    if (nargs < 7) {
+        goto skip_optional;
+    }
+    if (PyBytes_Check(args[6]) && PyBytes_GET_SIZE(args[6]) == 1) {
+        g = PyBytes_AS_STRING(args[6])[0];
+    }
+    else if (PyByteArray_Check(args[6]) && PyByteArray_GET_SIZE(args[6]) == 1) {
+        g = PyByteArray_AS_STRING(args[6])[0];
+    }
+    else {
+        _PyArg_BadArgument("char_converter", "argument 7", "a byte string of length 1", args[6]);
+        goto exit;
+    }
+    if (nargs < 8) {
+        goto skip_optional;
+    }
+    if (PyBytes_Check(args[7]) && PyBytes_GET_SIZE(args[7]) == 1) {
+        h = PyBytes_AS_STRING(args[7])[0];
+    }
+    else if (PyByteArray_Check(args[7]) && PyByteArray_GET_SIZE(args[7]) == 1) {
+        h = PyByteArray_AS_STRING(args[7])[0];
+    }
+    else {
+        _PyArg_BadArgument("char_converter", "argument 8", "a byte string of length 1", args[7]);
+        goto exit;
+    }
+    if (nargs < 9) {
+        goto skip_optional;
+    }
+    if (PyBytes_Check(args[8]) && PyBytes_GET_SIZE(args[8]) == 1) {
+        i = PyBytes_AS_STRING(args[8])[0];
+    }
+    else if (PyByteArray_Check(args[8]) && PyByteArray_GET_SIZE(args[8]) == 1) {
+        i = PyByteArray_AS_STRING(args[8])[0];
+    }
+    else {
+        _PyArg_BadArgument("char_converter", "argument 9", "a byte string of length 1", args[8]);
+        goto exit;
+    }
+    if (nargs < 10) {
+        goto skip_optional;
+    }
+    if (PyBytes_Check(args[9]) && PyBytes_GET_SIZE(args[9]) == 1) {
+        j = PyBytes_AS_STRING(args[9])[0];
+    }
+    else if (PyByteArray_Check(args[9]) && PyByteArray_GET_SIZE(args[9]) == 1) {
+        j = PyByteArray_AS_STRING(args[9])[0];
+    }
+    else {
+        _PyArg_BadArgument("char_converter", "argument 10", "a byte string of length 1", args[9]);
+        goto exit;
+    }
+    if (nargs < 11) {
+        goto skip_optional;
+    }
+    if (PyBytes_Check(args[10]) && PyBytes_GET_SIZE(args[10]) == 1) {
+        k = PyBytes_AS_STRING(args[10])[0];
+    }
+    else if (PyByteArray_Check(args[10]) && PyByteArray_GET_SIZE(args[10]) == 1) {
+        k = PyByteArray_AS_STRING(args[10])[0];
+    }
+    else {
+        _PyArg_BadArgument("char_converter", "argument 11", "a byte string of length 1", args[10]);
+        goto exit;
+    }
+    if (nargs < 12) {
+        goto skip_optional;
+    }
+    if (PyBytes_Check(args[11]) && PyBytes_GET_SIZE(args[11]) == 1) {
+        l = PyBytes_AS_STRING(args[11])[0];
+    }
+    else if (PyByteArray_Check(args[11]) && PyByteArray_GET_SIZE(args[11]) == 1) {
+        l = PyByteArray_AS_STRING(args[11])[0];
+    }
+    else {
+        _PyArg_BadArgument("char_converter", "argument 12", "a byte string of length 1", args[11]);
+        goto exit;
+    }
+    if (nargs < 13) {
+        goto skip_optional;
+    }
+    if (PyBytes_Check(args[12]) && PyBytes_GET_SIZE(args[12]) == 1) {
+        m = PyBytes_AS_STRING(args[12])[0];
+    }
+    else if (PyByteArray_Check(args[12]) && PyByteArray_GET_SIZE(args[12]) == 1) {
+        m = PyByteArray_AS_STRING(args[12])[0];
+    }
+    else {
+        _PyArg_BadArgument("char_converter", "argument 13", "a byte string of length 1", args[12]);
+        goto exit;
+    }
+    if (nargs < 14) {
+        goto skip_optional;
+    }
+    if (PyBytes_Check(args[13]) && PyBytes_GET_SIZE(args[13]) == 1) {
+        n = PyBytes_AS_STRING(args[13])[0];
+    }
+    else if (PyByteArray_Check(args[13]) && PyByteArray_GET_SIZE(args[13]) == 1) {
+        n = PyByteArray_AS_STRING(args[13])[0];
+    }
+    else {
+        _PyArg_BadArgument("char_converter", "argument 14", "a byte string of length 1", args[13]);
+        goto exit;
+    }
+skip_optional:
+    return_value = char_converter_impl(module, a, b, c, d, e, f, g, h, i, j, k, l, m, n);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(unsigned_char_converter__doc__,
+"unsigned_char_converter($module, a=12, b=34, c=56, /)\n"
+"--\n"
+"\n");
+
+#define UNSIGNED_CHAR_CONVERTER_METHODDEF    \
+    {"unsigned_char_converter", _PyCFunction_CAST(unsigned_char_converter), METH_FASTCALL, unsigned_char_converter__doc__},
+
+static PyObject *
+unsigned_char_converter_impl(PyObject *module, unsigned char a,
+                             unsigned char b, unsigned char c);
+
+static PyObject *
+unsigned_char_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    unsigned char a = 12;
+    unsigned char b = 34;
+    unsigned char c = 56;
+
+    if (!_PyArg_CheckPositional("unsigned_char_converter", nargs, 0, 3)) {
+        goto exit;
+    }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    {
+        long ival = PyLong_AsLong(args[0]);
+        if (ival == -1 && PyErr_Occurred()) {
+            goto exit;
+        }
+        else if (ival < 0) {
+            PyErr_SetString(PyExc_OverflowError,
+                            "unsigned byte integer is less than minimum");
+            goto exit;
+        }
+        else if (ival > UCHAR_MAX) {
+            PyErr_SetString(PyExc_OverflowError,
+                            "unsigned byte integer is greater than maximum");
+            goto exit;
+        }
+        else {
+            a = (unsigned char) ival;
+        }
+    }
+    if (nargs < 2) {
+        goto skip_optional;
+    }
+    {
+        long ival = PyLong_AsLong(args[1]);
+        if (ival == -1 && PyErr_Occurred()) {
+            goto exit;
+        }
+        else if (ival < 0) {
+            PyErr_SetString(PyExc_OverflowError,
+                            "unsigned byte integer is less than minimum");
+            goto exit;
+        }
+        else if (ival > UCHAR_MAX) {
+            PyErr_SetString(PyExc_OverflowError,
+                            "unsigned byte integer is greater than maximum");
+            goto exit;
+        }
+        else {
+            b = (unsigned char) ival;
+        }
+    }
+    if (nargs < 3) {
+        goto skip_optional;
+    }
+    {
+        unsigned long ival = PyLong_AsUnsignedLongMask(args[2]);
+        if (ival == (unsigned long)-1 && PyErr_Occurred()) {
+            goto exit;
+        }
+        else {
+            c = (unsigned char) ival;
+        }
+    }
+skip_optional:
+    return_value = unsigned_char_converter_impl(module, a, b, c);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(short_converter__doc__,
+"short_converter($module, a=12, /)\n"
+"--\n"
+"\n");
+
+#define SHORT_CONVERTER_METHODDEF    \
+    {"short_converter", _PyCFunction_CAST(short_converter), METH_FASTCALL, short_converter__doc__},
+
+static PyObject *
+short_converter_impl(PyObject *module, short a);
+
+static PyObject *
+short_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    short a = 12;
+
+    if (!_PyArg_CheckPositional("short_converter", nargs, 0, 1)) {
+        goto exit;
+    }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    {
+        long ival = PyLong_AsLong(args[0]);
+        if (ival == -1 && PyErr_Occurred()) {
+            goto exit;
+        }
+        else if (ival < SHRT_MIN) {
+            PyErr_SetString(PyExc_OverflowError,
+                            "signed short integer is less than minimum");
+            goto exit;
+        }
+        else if (ival > SHRT_MAX) {
+            PyErr_SetString(PyExc_OverflowError,
+                            "signed short integer is greater than maximum");
+            goto exit;
+        }
+        else {
+            a = (short) ival;
+        }
+    }
+skip_optional:
+    return_value = short_converter_impl(module, a);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(unsigned_short_converter__doc__,
+"unsigned_short_converter($module, a=12, b=34, c=56, /)\n"
+"--\n"
+"\n");
+
+#define UNSIGNED_SHORT_CONVERTER_METHODDEF    \
+    {"unsigned_short_converter", _PyCFunction_CAST(unsigned_short_converter), METH_FASTCALL, unsigned_short_converter__doc__},
+
+static PyObject *
+unsigned_short_converter_impl(PyObject *module, unsigned short a,
+                              unsigned short b, unsigned short c);
+
+static PyObject *
+unsigned_short_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    unsigned short a = 12;
+    unsigned short b = 34;
+    unsigned short c = 56;
+
+    if (!_PyArg_CheckPositional("unsigned_short_converter", nargs, 0, 3)) {
+        goto exit;
+    }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    if (!_PyLong_UnsignedShort_Converter(args[0], &a)) {
+        goto exit;
+    }
+    if (nargs < 2) {
+        goto skip_optional;
+    }
+    if (!_PyLong_UnsignedShort_Converter(args[1], &b)) {
+        goto exit;
+    }
+    if (nargs < 3) {
+        goto skip_optional;
+    }
+    c = (unsigned short)PyLong_AsUnsignedLongMask(args[2]);
+    if (c == (unsigned short)-1 && PyErr_Occurred()) {
+        goto exit;
+    }
+skip_optional:
+    return_value = unsigned_short_converter_impl(module, a, b, c);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(int_converter__doc__,
+"int_converter($module, a=12, b=34, c=45, /)\n"
+"--\n"
+"\n");
+
+#define INT_CONVERTER_METHODDEF    \
+    {"int_converter", _PyCFunction_CAST(int_converter), METH_FASTCALL, int_converter__doc__},
+
+static PyObject *
+int_converter_impl(PyObject *module, int a, int b, int c);
+
+static PyObject *
+int_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    int a = 12;
+    int b = 34;
+    int c = 45;
+
+    if (!_PyArg_CheckPositional("int_converter", nargs, 0, 3)) {
+        goto exit;
+    }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    a = _PyLong_AsInt(args[0]);
+    if (a == -1 && PyErr_Occurred()) {
+        goto exit;
+    }
+    if (nargs < 2) {
+        goto skip_optional;
+    }
+    b = _PyLong_AsInt(args[1]);
+    if (b == -1 && PyErr_Occurred()) {
+        goto exit;
+    }
+    if (nargs < 3) {
+        goto skip_optional;
+    }
+    if (!PyUnicode_Check(args[2])) {
+        _PyArg_BadArgument("int_converter", "argument 3", "a unicode character", args[2]);
+        goto exit;
+    }
+    if (PyUnicode_READY(args[2])) {
+        goto exit;
+    }
+    if (PyUnicode_GET_LENGTH(args[2]) != 1) {
+        _PyArg_BadArgument("int_converter", "argument 3", "a unicode character", args[2]);
+        goto exit;
+    }
+    c = PyUnicode_READ_CHAR(args[2], 0);
+skip_optional:
+    return_value = int_converter_impl(module, a, b, c);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(unsigned_int_converter__doc__,
+"unsigned_int_converter($module, a=12, b=34, c=56, /)\n"
+"--\n"
+"\n");
+
+#define UNSIGNED_INT_CONVERTER_METHODDEF    \
+    {"unsigned_int_converter", _PyCFunction_CAST(unsigned_int_converter), METH_FASTCALL, unsigned_int_converter__doc__},
+
+static PyObject *
+unsigned_int_converter_impl(PyObject *module, unsigned int a, unsigned int b,
+                            unsigned int c);
+
+static PyObject *
+unsigned_int_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    unsigned int a = 12;
+    unsigned int b = 34;
+    unsigned int c = 56;
+
+    if (!_PyArg_CheckPositional("unsigned_int_converter", nargs, 0, 3)) {
+        goto exit;
+    }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    if (!_PyLong_UnsignedInt_Converter(args[0], &a)) {
+        goto exit;
+    }
+    if (nargs < 2) {
+        goto skip_optional;
+    }
+    if (!_PyLong_UnsignedInt_Converter(args[1], &b)) {
+        goto exit;
+    }
+    if (nargs < 3) {
+        goto skip_optional;
+    }
+    c = (unsigned int)PyLong_AsUnsignedLongMask(args[2]);
+    if (c == (unsigned int)-1 && PyErr_Occurred()) {
+        goto exit;
+    }
+skip_optional:
+    return_value = unsigned_int_converter_impl(module, a, b, c);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(long_converter__doc__,
+"long_converter($module, a=12, /)\n"
+"--\n"
+"\n");
+
+#define LONG_CONVERTER_METHODDEF    \
+    {"long_converter", _PyCFunction_CAST(long_converter), METH_FASTCALL, long_converter__doc__},
+
+static PyObject *
+long_converter_impl(PyObject *module, long a);
+
+static PyObject *
+long_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    long a = 12;
+
+    if (!_PyArg_CheckPositional("long_converter", nargs, 0, 1)) {
+        goto exit;
+    }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    a = PyLong_AsLong(args[0]);
+    if (a == -1 && PyErr_Occurred()) {
+        goto exit;
+    }
+skip_optional:
+    return_value = long_converter_impl(module, a);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(unsigned_long_converter__doc__,
+"unsigned_long_converter($module, a=12, b=34, c=56, /)\n"
+"--\n"
+"\n");
+
+#define UNSIGNED_LONG_CONVERTER_METHODDEF    \
+    {"unsigned_long_converter", _PyCFunction_CAST(unsigned_long_converter), METH_FASTCALL, unsigned_long_converter__doc__},
+
+static PyObject *
+unsigned_long_converter_impl(PyObject *module, unsigned long a,
+                             unsigned long b, unsigned long c);
+
+static PyObject *
+unsigned_long_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    unsigned long a = 12;
+    unsigned long b = 34;
+    unsigned long c = 56;
+
+    if (!_PyArg_CheckPositional("unsigned_long_converter", nargs, 0, 3)) {
+        goto exit;
+    }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    if (!_PyLong_UnsignedLong_Converter(args[0], &a)) {
+        goto exit;
+    }
+    if (nargs < 2) {
+        goto skip_optional;
+    }
+    if (!_PyLong_UnsignedLong_Converter(args[1], &b)) {
+        goto exit;
+    }
+    if (nargs < 3) {
+        goto skip_optional;
+    }
+    if (!PyLong_Check(args[2])) {
+        _PyArg_BadArgument("unsigned_long_converter", "argument 3", "int", args[2]);
+        goto exit;
+    }
+    c = PyLong_AsUnsignedLongMask(args[2]);
+skip_optional:
+    return_value = unsigned_long_converter_impl(module, a, b, c);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(long_long_converter__doc__,
+"long_long_converter($module, a=12, /)\n"
+"--\n"
+"\n");
+
+#define LONG_LONG_CONVERTER_METHODDEF    \
+    {"long_long_converter", _PyCFunction_CAST(long_long_converter), METH_FASTCALL, long_long_converter__doc__},
+
+static PyObject *
+long_long_converter_impl(PyObject *module, long long a);
+
+static PyObject *
+long_long_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    long long a = 12;
+
+    if (!_PyArg_CheckPositional("long_long_converter", nargs, 0, 1)) {
+        goto exit;
+    }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    a = PyLong_AsLongLong(args[0]);
+    if (a == -1 && PyErr_Occurred()) {
+        goto exit;
+    }
+skip_optional:
+    return_value = long_long_converter_impl(module, a);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(unsigned_long_long_converter__doc__,
+"unsigned_long_long_converter($module, a=12, b=34, c=56, /)\n"
+"--\n"
+"\n");
+
+#define UNSIGNED_LONG_LONG_CONVERTER_METHODDEF    \
+    {"unsigned_long_long_converter", _PyCFunction_CAST(unsigned_long_long_converter), METH_FASTCALL, unsigned_long_long_converter__doc__},
+
+static PyObject *
+unsigned_long_long_converter_impl(PyObject *module, unsigned long long a,
+                                  unsigned long long b, unsigned long long c);
+
+static PyObject *
+unsigned_long_long_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    unsigned long long a = 12;
+    unsigned long long b = 34;
+    unsigned long long c = 56;
+
+    if (!_PyArg_CheckPositional("unsigned_long_long_converter", nargs, 0, 3)) {
+        goto exit;
+    }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    if (!_PyLong_UnsignedLongLong_Converter(args[0], &a)) {
+        goto exit;
+    }
+    if (nargs < 2) {
+        goto skip_optional;
+    }
+    if (!_PyLong_UnsignedLongLong_Converter(args[1], &b)) {
+        goto exit;
+    }
+    if (nargs < 3) {
+        goto skip_optional;
+    }
+    if (!PyLong_Check(args[2])) {
+        _PyArg_BadArgument("unsigned_long_long_converter", "argument 3", "int", args[2]);
+        goto exit;
+    }
+    c = PyLong_AsUnsignedLongLongMask(args[2]);
+skip_optional:
+    return_value = unsigned_long_long_converter_impl(module, a, b, c);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(py_ssize_t_converter__doc__,
+"py_ssize_t_converter($module, a=12, b=34, c=56, /)\n"
+"--\n"
+"\n");
+
+#define PY_SSIZE_T_CONVERTER_METHODDEF    \
+    {"py_ssize_t_converter", _PyCFunction_CAST(py_ssize_t_converter), METH_FASTCALL, py_ssize_t_converter__doc__},
+
+static PyObject *
+py_ssize_t_converter_impl(PyObject *module, Py_ssize_t a, Py_ssize_t b,
+                          Py_ssize_t c);
+
+static PyObject *
+py_ssize_t_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    Py_ssize_t a = 12;
+    Py_ssize_t b = 34;
+    Py_ssize_t c = 56;
+
+    if (!_PyArg_CheckPositional("py_ssize_t_converter", nargs, 0, 3)) {
+        goto exit;
+    }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    {
+        Py_ssize_t ival = -1;
+        PyObject *iobj = _PyNumber_Index(args[0]);
+        if (iobj != NULL) {
+            ival = PyLong_AsSsize_t(iobj);
+            Py_DECREF(iobj);
+        }
+        if (ival == -1 && PyErr_Occurred()) {
+            goto exit;
+        }
+        a = ival;
+    }
+    if (nargs < 2) {
+        goto skip_optional;
+    }
+    {
+        Py_ssize_t ival = -1;
+        PyObject *iobj = _PyNumber_Index(args[1]);
+        if (iobj != NULL) {
+            ival = PyLong_AsSsize_t(iobj);
+            Py_DECREF(iobj);
+        }
+        if (ival == -1 && PyErr_Occurred()) {
+            goto exit;
+        }
+        b = ival;
+    }
+    if (nargs < 3) {
+        goto skip_optional;
+    }
+    if (!_Py_convert_optional_to_ssize_t(args[2], &c)) {
+        goto exit;
+    }
+skip_optional:
+    return_value = py_ssize_t_converter_impl(module, a, b, c);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(slice_index_converter__doc__,
+"slice_index_converter($module, a=12, b=34, c=56, /)\n"
+"--\n"
+"\n");
+
+#define SLICE_INDEX_CONVERTER_METHODDEF    \
+    {"slice_index_converter", _PyCFunction_CAST(slice_index_converter), METH_FASTCALL, slice_index_converter__doc__},
+
+static PyObject *
+slice_index_converter_impl(PyObject *module, Py_ssize_t a, Py_ssize_t b,
+                           Py_ssize_t c);
+
+static PyObject *
+slice_index_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    Py_ssize_t a = 12;
+    Py_ssize_t b = 34;
+    Py_ssize_t c = 56;
+
+    if (!_PyArg_CheckPositional("slice_index_converter", nargs, 0, 3)) {
+        goto exit;
+    }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    if (!_PyEval_SliceIndex(args[0], &a)) {
+        goto exit;
+    }
+    if (nargs < 2) {
+        goto skip_optional;
+    }
+    if (!_PyEval_SliceIndexNotNone(args[1], &b)) {
+        goto exit;
+    }
+    if (nargs < 3) {
+        goto skip_optional;
+    }
+    if (!_PyEval_SliceIndex(args[2], &c)) {
+        goto exit;
+    }
+skip_optional:
+    return_value = slice_index_converter_impl(module, a, b, c);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(size_t_converter__doc__,
+"size_t_converter($module, a=12, /)\n"
+"--\n"
+"\n");
+
+#define SIZE_T_CONVERTER_METHODDEF    \
+    {"size_t_converter", _PyCFunction_CAST(size_t_converter), METH_FASTCALL, size_t_converter__doc__},
+
+static PyObject *
+size_t_converter_impl(PyObject *module, size_t a);
+
+static PyObject *
+size_t_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    size_t a = 12;
+
+    if (!_PyArg_CheckPositional("size_t_converter", nargs, 0, 1)) {
+        goto exit;
+    }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    if (!_PyLong_Size_t_Converter(args[0], &a)) {
+        goto exit;
+    }
+skip_optional:
+    return_value = size_t_converter_impl(module, a);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(float_converter__doc__,
+"float_converter($module, a=12.5, /)\n"
+"--\n"
+"\n");
+
+#define FLOAT_CONVERTER_METHODDEF    \
+    {"float_converter", _PyCFunction_CAST(float_converter), METH_FASTCALL, float_converter__doc__},
+
+static PyObject *
+float_converter_impl(PyObject *module, float a);
+
+static PyObject *
+float_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    float a = 12.5;
+
+    if (!_PyArg_CheckPositional("float_converter", nargs, 0, 1)) {
+        goto exit;
+    }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    if (PyFloat_CheckExact(args[0])) {
+        a = (float) (PyFloat_AS_DOUBLE(args[0]));
+    }
+    else
+    {
+        a = (float) PyFloat_AsDouble(args[0]);
+        if (a == -1.0 && PyErr_Occurred()) {
+            goto exit;
+        }
+    }
+skip_optional:
+    return_value = float_converter_impl(module, a);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(double_converter__doc__,
+"double_converter($module, a=12.5, /)\n"
+"--\n"
+"\n");
+
+#define DOUBLE_CONVERTER_METHODDEF    \
+    {"double_converter", _PyCFunction_CAST(double_converter), METH_FASTCALL, double_converter__doc__},
+
+static PyObject *
+double_converter_impl(PyObject *module, double a);
+
+static PyObject *
+double_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    double a = 12.5;
+
+    if (!_PyArg_CheckPositional("double_converter", nargs, 0, 1)) {
+        goto exit;
+    }
+    if (nargs < 1) {
+        goto skip_optional;
+    }
+    if (PyFloat_CheckExact(args[0])) {
+        a = PyFloat_AS_DOUBLE(args[0]);
+    }
+    else
+    {
+        a = PyFloat_AsDouble(args[0]);
+        if (a == -1.0 && PyErr_Occurred()) {
+            goto exit;
+        }
+    }
+skip_optional:
+    return_value = double_converter_impl(module, a);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(py_complex_converter__doc__,
+"py_complex_converter($module, a, /)\n"
+"--\n"
+"\n");
+
+#define PY_COMPLEX_CONVERTER_METHODDEF    \
+    {"py_complex_converter", (PyCFunction)py_complex_converter, METH_O, py_complex_converter__doc__},
+
+static PyObject *
+py_complex_converter_impl(PyObject *module, Py_complex a);
+
+static PyObject *
+py_complex_converter(PyObject *module, PyObject *arg)
+{
+    PyObject *return_value = NULL;
+    Py_complex a;
+
+    a = PyComplex_AsCComplex(arg);
+    if (PyErr_Occurred()) {
+        goto exit;
+    }
+    return_value = py_complex_converter_impl(module, a);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(str_converter__doc__,
+"str_converter($module, a=\'a\', b=\'b\', c=\'c\', /)\n"
+"--\n"
+"\n");
+
+#define STR_CONVERTER_METHODDEF    \
+    {"str_converter", _PyCFunction_CAST(str_converter), METH_FASTCALL, str_converter__doc__},
+
+static PyObject *
+str_converter_impl(PyObject *module, const char *a, const char *b,
+                   const char *c, Py_ssize_t c_length);
+
+static PyObject *
+str_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    const char *a = "a";
+    const char *b = "b";
+    const char *c = "c";
+    Py_ssize_t c_length;
+
+    if (!_PyArg_ParseStack(args, nargs, "|sys#:str_converter",
+        &a, &b, &c, &c_length)) {
+        goto exit;
+    }
+    return_value = str_converter_impl(module, a, b, c, c_length);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(py_buffer_converter__doc__,
+"py_buffer_converter($module, a, b, /)\n"
+"--\n"
+"\n");
+
+#define PY_BUFFER_CONVERTER_METHODDEF    \
+    {"py_buffer_converter", _PyCFunction_CAST(py_buffer_converter), METH_FASTCALL, py_buffer_converter__doc__},
+
+static PyObject *
+py_buffer_converter_impl(PyObject *module, Py_buffer *a, Py_buffer *b);
+
+static PyObject *
+py_buffer_converter(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
+{
+    PyObject *return_value = NULL;
+    Py_buffer a = {NULL, NULL};
+    Py_buffer b = {NULL, NULL};
+
+    if (!_PyArg_ParseStack(args, nargs, "z*w*:py_buffer_converter",
+        &a, &b)) {
+        goto exit;
+    }
+    return_value = py_buffer_converter_impl(module, &a, &b);
+
+exit:
+    /* Cleanup for a */
+    if (a.obj) {
+       PyBuffer_Release(&a);
+    }
+    /* Cleanup for b */
+    if (b.obj) {
+       PyBuffer_Release(&b);
+    }
+
+    return return_value;
+}
+
+PyDoc_STRVAR(keywords__doc__,
+"keywords($module, /, a, b)\n"
+"--\n"
+"\n");
+
+#define KEYWORDS_METHODDEF    \
+    {"keywords", _PyCFunction_CAST(keywords), METH_FASTCALL|METH_KEYWORDS, keywords__doc__},
+
+static PyObject *
+keywords_impl(PyObject *module, PyObject *a, PyObject *b);
+
+static PyObject *
+keywords(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
+{
+    PyObject *return_value = NULL;
+    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
+
+    #define NUM_KEYWORDS 2
+    static struct {
+        PyGC_Head _this_is_not_used;
+        PyObject_VAR_HEAD
+        PyObject *ob_item[NUM_KEYWORDS];
+    } _kwtuple = {
+        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
+        .ob_item = { &_Py_ID(a), &_Py_ID(b), },
+    };
+    #undef NUM_KEYWORDS
+    #define KWTUPLE (&_kwtuple.ob_base.ob_base)
+
+    #else  // !Py_BUILD_CORE
+    #  define KWTUPLE NULL
+    #endif  // !Py_BUILD_CORE
+
+    static const char * const _keywords[] = {"a", "b", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "keywords",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[2];
+    PyObject *a;
+    PyObject *b;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 2, 2, 0, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    a = args[0];
+    b = args[1];
+    return_value = keywords_impl(module, a, b);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(keywords_kwonly__doc__,
+"keywords_kwonly($module, /, a, *, b)\n"
+"--\n"
+"\n");
+
+#define KEYWORDS_KWONLY_METHODDEF    \
+    {"keywords_kwonly", _PyCFunction_CAST(keywords_kwonly), METH_FASTCALL|METH_KEYWORDS, keywords_kwonly__doc__},
+
+static PyObject *
+keywords_kwonly_impl(PyObject *module, PyObject *a, PyObject *b);
+
+static PyObject *
+keywords_kwonly(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(a), &_Py_ID(b), },
+    };
+    #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[] = {"a", "b", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "keywords_kwonly",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[2];
+    PyObject *a;
+    PyObject *b;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 1, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    a = args[0];
+    b = args[1];
+    return_value = keywords_kwonly_impl(module, a, b);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(keywords_opt__doc__,
+"keywords_opt($module, /, a, b=None, c=None)\n"
+"--\n"
+"\n");
+
+#define KEYWORDS_OPT_METHODDEF    \
+    {"keywords_opt", _PyCFunction_CAST(keywords_opt), METH_FASTCALL|METH_KEYWORDS, keywords_opt__doc__},
+
+static PyObject *
+keywords_opt_impl(PyObject *module, PyObject *a, PyObject *b, PyObject *c);
+
+static PyObject *
+keywords_opt(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
+{
+    PyObject *return_value = NULL;
+    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
+
+    #define NUM_KEYWORDS 3
+    static struct {
+        PyGC_Head _this_is_not_used;
+        PyObject_VAR_HEAD
+        PyObject *ob_item[NUM_KEYWORDS];
+    } _kwtuple = {
+        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
+        .ob_item = { &_Py_ID(a), &_Py_ID(b), &_Py_ID(c), },
+    };
+    #undef NUM_KEYWORDS
+    #define KWTUPLE (&_kwtuple.ob_base.ob_base)
+
+    #else  // !Py_BUILD_CORE
+    #  define KWTUPLE NULL
+    #endif  // !Py_BUILD_CORE
+
+    static const char * const _keywords[] = {"a", "b", "c", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "keywords_opt",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[3];
+    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 1;
+    PyObject *a;
+    PyObject *b = Py_None;
+    PyObject *c = Py_None;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 3, 0, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    a = args[0];
+    if (!noptargs) {
+        goto skip_optional_pos;
+    }
+    if (args[1]) {
+        b = args[1];
+        if (!--noptargs) {
+            goto skip_optional_pos;
+        }
+    }
+    c = args[2];
+skip_optional_pos:
+    return_value = keywords_opt_impl(module, a, b, c);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(keywords_opt_kwonly__doc__,
+"keywords_opt_kwonly($module, /, a, b=None, *, c=None, d=None)\n"
+"--\n"
+"\n");
+
+#define KEYWORDS_OPT_KWONLY_METHODDEF    \
+    {"keywords_opt_kwonly", _PyCFunction_CAST(keywords_opt_kwonly), METH_FASTCALL|METH_KEYWORDS, keywords_opt_kwonly__doc__},
+
+static PyObject *
+keywords_opt_kwonly_impl(PyObject *module, PyObject *a, PyObject *b,
+                         PyObject *c, PyObject *d);
+
+static PyObject *
+keywords_opt_kwonly(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 4
+    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(a), &_Py_ID(b), &_Py_ID(c), &_Py_ID(d), },
+    };
+    #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[] = {"a", "b", "c", "d", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "keywords_opt_kwonly",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[4];
+    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 1;
+    PyObject *a;
+    PyObject *b = Py_None;
+    PyObject *c = Py_None;
+    PyObject *d = Py_None;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 2, 0, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    a = args[0];
+    if (!noptargs) {
+        goto skip_optional_pos;
+    }
+    if (args[1]) {
+        b = args[1];
+        if (!--noptargs) {
+            goto skip_optional_pos;
+        }
+    }
+skip_optional_pos:
+    if (!noptargs) {
+        goto skip_optional_kwonly;
+    }
+    if (args[2]) {
+        c = args[2];
+        if (!--noptargs) {
+            goto skip_optional_kwonly;
+        }
+    }
+    d = args[3];
+skip_optional_kwonly:
+    return_value = keywords_opt_kwonly_impl(module, a, b, c, d);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(keywords_kwonly_opt__doc__,
+"keywords_kwonly_opt($module, /, a, *, b=None, c=None)\n"
+"--\n"
+"\n");
+
+#define KEYWORDS_KWONLY_OPT_METHODDEF    \
+    {"keywords_kwonly_opt", _PyCFunction_CAST(keywords_kwonly_opt), METH_FASTCALL|METH_KEYWORDS, keywords_kwonly_opt__doc__},
+
+static PyObject *
+keywords_kwonly_opt_impl(PyObject *module, PyObject *a, PyObject *b,
+                         PyObject *c);
+
+static PyObject *
+keywords_kwonly_opt(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 3
+    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(a), &_Py_ID(b), &_Py_ID(c), },
+    };
+    #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[] = {"a", "b", "c", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "keywords_kwonly_opt",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[3];
+    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 1;
+    PyObject *a;
+    PyObject *b = Py_None;
+    PyObject *c = Py_None;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    a = args[0];
+    if (!noptargs) {
+        goto skip_optional_kwonly;
+    }
+    if (args[1]) {
+        b = args[1];
+        if (!--noptargs) {
+            goto skip_optional_kwonly;
+        }
+    }
+    c = args[2];
+skip_optional_kwonly:
+    return_value = keywords_kwonly_opt_impl(module, a, b, c);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(posonly_keywords__doc__,
+"posonly_keywords($module, a, /, b)\n"
+"--\n"
+"\n");
+
+#define POSONLY_KEYWORDS_METHODDEF    \
+    {"posonly_keywords", _PyCFunction_CAST(posonly_keywords), METH_FASTCALL|METH_KEYWORDS, posonly_keywords__doc__},
+
+static PyObject *
+posonly_keywords_impl(PyObject *module, PyObject *a, PyObject *b);
+
+static PyObject *
+posonly_keywords(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 1
+    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(b), },
+    };
+    #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[] = {"", "b", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "posonly_keywords",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[2];
+    PyObject *a;
+    PyObject *b;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 2, 2, 0, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    a = args[0];
+    b = args[1];
+    return_value = posonly_keywords_impl(module, a, b);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(posonly_kwonly__doc__,
+"posonly_kwonly($module, a, /, *, b)\n"
+"--\n"
+"\n");
+
+#define POSONLY_KWONLY_METHODDEF    \
+    {"posonly_kwonly", _PyCFunction_CAST(posonly_kwonly), METH_FASTCALL|METH_KEYWORDS, posonly_kwonly__doc__},
+
+static PyObject *
+posonly_kwonly_impl(PyObject *module, PyObject *a, PyObject *b);
+
+static PyObject *
+posonly_kwonly(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
+{
+    PyObject *return_value = NULL;
+    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
+
+    #define NUM_KEYWORDS 1
+    static struct {
+        PyGC_Head _this_is_not_used;
+        PyObject_VAR_HEAD
+        PyObject *ob_item[NUM_KEYWORDS];
+    } _kwtuple = {
+        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
+        .ob_item = { &_Py_ID(b), },
+    };
+    #undef NUM_KEYWORDS
+    #define KWTUPLE (&_kwtuple.ob_base.ob_base)
+
+    #else  // !Py_BUILD_CORE
+    #  define KWTUPLE NULL
+    #endif  // !Py_BUILD_CORE
+
+    static const char * const _keywords[] = {"", "b", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "posonly_kwonly",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[2];
+    PyObject *a;
+    PyObject *b;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 1, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    a = args[0];
+    b = args[1];
+    return_value = posonly_kwonly_impl(module, a, b);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(posonly_keywords_kwonly__doc__,
+"posonly_keywords_kwonly($module, a, /, b, *, c)\n"
+"--\n"
+"\n");
+
+#define POSONLY_KEYWORDS_KWONLY_METHODDEF    \
+    {"posonly_keywords_kwonly", _PyCFunction_CAST(posonly_keywords_kwonly), METH_FASTCALL|METH_KEYWORDS, posonly_keywords_kwonly__doc__},
+
+static PyObject *
+posonly_keywords_kwonly_impl(PyObject *module, PyObject *a, PyObject *b,
+                             PyObject *c);
+
+static PyObject *
+posonly_keywords_kwonly(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(b), &_Py_ID(c), },
+    };
+    #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[] = {"", "b", "c", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "posonly_keywords_kwonly",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[3];
+    PyObject *a;
+    PyObject *b;
+    PyObject *c;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 2, 2, 1, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    a = args[0];
+    b = args[1];
+    c = args[2];
+    return_value = posonly_keywords_kwonly_impl(module, a, b, c);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(posonly_keywords_opt__doc__,
+"posonly_keywords_opt($module, a, /, b, c=None, d=None)\n"
+"--\n"
+"\n");
+
+#define POSONLY_KEYWORDS_OPT_METHODDEF    \
+    {"posonly_keywords_opt", _PyCFunction_CAST(posonly_keywords_opt), METH_FASTCALL|METH_KEYWORDS, posonly_keywords_opt__doc__},
+
+static PyObject *
+posonly_keywords_opt_impl(PyObject *module, PyObject *a, PyObject *b,
+                          PyObject *c, PyObject *d);
+
+static PyObject *
+posonly_keywords_opt(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 3
+    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(b), &_Py_ID(c), &_Py_ID(d), },
+    };
+    #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[] = {"", "b", "c", "d", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "posonly_keywords_opt",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[4];
+    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 2;
+    PyObject *a;
+    PyObject *b;
+    PyObject *c = Py_None;
+    PyObject *d = Py_None;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 2, 4, 0, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    a = args[0];
+    b = args[1];
+    if (!noptargs) {
+        goto skip_optional_pos;
+    }
+    if (args[2]) {
+        c = args[2];
+        if (!--noptargs) {
+            goto skip_optional_pos;
+        }
+    }
+    d = args[3];
+skip_optional_pos:
+    return_value = posonly_keywords_opt_impl(module, a, b, c, d);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(posonly_opt_keywords_opt__doc__,
+"posonly_opt_keywords_opt($module, a, b=None, /, c=None, d=None)\n"
+"--\n"
+"\n");
+
+#define POSONLY_OPT_KEYWORDS_OPT_METHODDEF    \
+    {"posonly_opt_keywords_opt", _PyCFunction_CAST(posonly_opt_keywords_opt), METH_FASTCALL|METH_KEYWORDS, posonly_opt_keywords_opt__doc__},
+
+static PyObject *
+posonly_opt_keywords_opt_impl(PyObject *module, PyObject *a, PyObject *b,
+                              PyObject *c, PyObject *d);
+
+static PyObject *
+posonly_opt_keywords_opt(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(c), &_Py_ID(d), },
+    };
+    #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[] = {"", "", "c", "d", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "posonly_opt_keywords_opt",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[4];
+    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 1;
+    PyObject *a;
+    PyObject *b = Py_None;
+    PyObject *c = Py_None;
+    PyObject *d = Py_None;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 4, 0, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    a = args[0];
+    if (nargs < 2) {
+        goto skip_optional_posonly;
+    }
+    noptargs--;
+    b = args[1];
+skip_optional_posonly:
+    if (!noptargs) {
+        goto skip_optional_pos;
+    }
+    if (args[2]) {
+        c = args[2];
+        if (!--noptargs) {
+            goto skip_optional_pos;
+        }
+    }
+    d = args[3];
+skip_optional_pos:
+    return_value = posonly_opt_keywords_opt_impl(module, a, b, c, d);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(posonly_kwonly_opt__doc__,
+"posonly_kwonly_opt($module, a, /, *, b, c=None, d=None)\n"
+"--\n"
+"\n");
+
+#define POSONLY_KWONLY_OPT_METHODDEF    \
+    {"posonly_kwonly_opt", _PyCFunction_CAST(posonly_kwonly_opt), METH_FASTCALL|METH_KEYWORDS, posonly_kwonly_opt__doc__},
+
+static PyObject *
+posonly_kwonly_opt_impl(PyObject *module, PyObject *a, PyObject *b,
+                        PyObject *c, PyObject *d);
+
+static PyObject *
+posonly_kwonly_opt(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 3
+    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(b), &_Py_ID(c), &_Py_ID(d), },
+    };
+    #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[] = {"", "b", "c", "d", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "posonly_kwonly_opt",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[4];
+    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 2;
+    PyObject *a;
+    PyObject *b;
+    PyObject *c = Py_None;
+    PyObject *d = Py_None;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 1, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    a = args[0];
+    b = args[1];
+    if (!noptargs) {
+        goto skip_optional_kwonly;
+    }
+    if (args[2]) {
+        c = args[2];
+        if (!--noptargs) {
+            goto skip_optional_kwonly;
+        }
+    }
+    d = args[3];
+skip_optional_kwonly:
+    return_value = posonly_kwonly_opt_impl(module, a, b, c, d);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(posonly_opt_kwonly_opt__doc__,
+"posonly_opt_kwonly_opt($module, a, b=None, /, *, c=None, d=None)\n"
+"--\n"
+"\n");
+
+#define POSONLY_OPT_KWONLY_OPT_METHODDEF    \
+    {"posonly_opt_kwonly_opt", _PyCFunction_CAST(posonly_opt_kwonly_opt), METH_FASTCALL|METH_KEYWORDS, posonly_opt_kwonly_opt__doc__},
+
+static PyObject *
+posonly_opt_kwonly_opt_impl(PyObject *module, PyObject *a, PyObject *b,
+                            PyObject *c, PyObject *d);
+
+static PyObject *
+posonly_opt_kwonly_opt(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(c), &_Py_ID(d), },
+    };
+    #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[] = {"", "", "c", "d", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "posonly_opt_kwonly_opt",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[4];
+    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 1;
+    PyObject *a;
+    PyObject *b = Py_None;
+    PyObject *c = Py_None;
+    PyObject *d = Py_None;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 2, 0, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    a = args[0];
+    if (nargs < 2) {
+        goto skip_optional_posonly;
+    }
+    noptargs--;
+    b = args[1];
+skip_optional_posonly:
+    if (!noptargs) {
+        goto skip_optional_kwonly;
+    }
+    if (args[2]) {
+        c = args[2];
+        if (!--noptargs) {
+            goto skip_optional_kwonly;
+        }
+    }
+    d = args[3];
+skip_optional_kwonly:
+    return_value = posonly_opt_kwonly_opt_impl(module, a, b, c, d);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(posonly_keywords_kwonly_opt__doc__,
+"posonly_keywords_kwonly_opt($module, a, /, b, *, c, d=None, e=None)\n"
+"--\n"
+"\n");
+
+#define POSONLY_KEYWORDS_KWONLY_OPT_METHODDEF    \
+    {"posonly_keywords_kwonly_opt", _PyCFunction_CAST(posonly_keywords_kwonly_opt), METH_FASTCALL|METH_KEYWORDS, posonly_keywords_kwonly_opt__doc__},
+
+static PyObject *
+posonly_keywords_kwonly_opt_impl(PyObject *module, PyObject *a, PyObject *b,
+                                 PyObject *c, PyObject *d, PyObject *e);
+
+static PyObject *
+posonly_keywords_kwonly_opt(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 4
+    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(b), &_Py_ID(c), &_Py_ID(d), &_Py_ID(e), },
+    };
+    #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[] = {"", "b", "c", "d", "e", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "posonly_keywords_kwonly_opt",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[5];
+    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 3;
+    PyObject *a;
+    PyObject *b;
+    PyObject *c;
+    PyObject *d = Py_None;
+    PyObject *e = Py_None;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 2, 2, 1, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    a = args[0];
+    b = args[1];
+    c = args[2];
+    if (!noptargs) {
+        goto skip_optional_kwonly;
+    }
+    if (args[3]) {
+        d = args[3];
+        if (!--noptargs) {
+            goto skip_optional_kwonly;
+        }
+    }
+    e = args[4];
+skip_optional_kwonly:
+    return_value = posonly_keywords_kwonly_opt_impl(module, a, b, c, d, e);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(posonly_keywords_opt_kwonly_opt__doc__,
+"posonly_keywords_opt_kwonly_opt($module, a, /, b, c=None, *, d=None,\n"
+"                                e=None)\n"
+"--\n"
+"\n");
+
+#define POSONLY_KEYWORDS_OPT_KWONLY_OPT_METHODDEF    \
+    {"posonly_keywords_opt_kwonly_opt", _PyCFunction_CAST(posonly_keywords_opt_kwonly_opt), METH_FASTCALL|METH_KEYWORDS, posonly_keywords_opt_kwonly_opt__doc__},
+
+static PyObject *
+posonly_keywords_opt_kwonly_opt_impl(PyObject *module, PyObject *a,
+                                     PyObject *b, PyObject *c, PyObject *d,
+                                     PyObject *e);
+
+static PyObject *
+posonly_keywords_opt_kwonly_opt(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 4
+    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(b), &_Py_ID(c), &_Py_ID(d), &_Py_ID(e), },
+    };
+    #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[] = {"", "b", "c", "d", "e", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "posonly_keywords_opt_kwonly_opt",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[5];
+    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 2;
+    PyObject *a;
+    PyObject *b;
+    PyObject *c = Py_None;
+    PyObject *d = Py_None;
+    PyObject *e = Py_None;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 2, 3, 0, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    a = args[0];
+    b = args[1];
+    if (!noptargs) {
+        goto skip_optional_pos;
+    }
+    if (args[2]) {
+        c = args[2];
+        if (!--noptargs) {
+            goto skip_optional_pos;
+        }
+    }
+skip_optional_pos:
+    if (!noptargs) {
+        goto skip_optional_kwonly;
+    }
+    if (args[3]) {
+        d = args[3];
+        if (!--noptargs) {
+            goto skip_optional_kwonly;
+        }
+    }
+    e = args[4];
+skip_optional_kwonly:
+    return_value = posonly_keywords_opt_kwonly_opt_impl(module, a, b, c, d, e);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(posonly_opt_keywords_opt_kwonly_opt__doc__,
+"posonly_opt_keywords_opt_kwonly_opt($module, a, b=None, /, c=None, *,\n"
+"                                    d=None)\n"
+"--\n"
+"\n");
+
+#define POSONLY_OPT_KEYWORDS_OPT_KWONLY_OPT_METHODDEF    \
+    {"posonly_opt_keywords_opt_kwonly_opt", _PyCFunction_CAST(posonly_opt_keywords_opt_kwonly_opt), METH_FASTCALL|METH_KEYWORDS, posonly_opt_keywords_opt_kwonly_opt__doc__},
+
+static PyObject *
+posonly_opt_keywords_opt_kwonly_opt_impl(PyObject *module, PyObject *a,
+                                         PyObject *b, PyObject *c,
+                                         PyObject *d);
+
+static PyObject *
+posonly_opt_keywords_opt_kwonly_opt(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(c), &_Py_ID(d), },
+    };
+    #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[] = {"", "", "c", "d", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "posonly_opt_keywords_opt_kwonly_opt",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[4];
+    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 1;
+    PyObject *a;
+    PyObject *b = Py_None;
+    PyObject *c = Py_None;
+    PyObject *d = Py_None;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 3, 0, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    a = args[0];
+    if (nargs < 2) {
+        goto skip_optional_posonly;
+    }
+    noptargs--;
+    b = args[1];
+skip_optional_posonly:
+    if (!noptargs) {
+        goto skip_optional_pos;
+    }
+    if (args[2]) {
+        c = args[2];
+        if (!--noptargs) {
+            goto skip_optional_pos;
+        }
+    }
+skip_optional_pos:
+    if (!noptargs) {
+        goto skip_optional_kwonly;
+    }
+    d = args[3];
+skip_optional_kwonly:
+    return_value = posonly_opt_keywords_opt_kwonly_opt_impl(module, a, b, c, d);
+
+exit:
+    return return_value;
+}
+
+PyDoc_STRVAR(keyword_only_parameter__doc__,
+"keyword_only_parameter($module, /, *, a)\n"
+"--\n"
+"\n");
+
+#define KEYWORD_ONLY_PARAMETER_METHODDEF    \
+    {"keyword_only_parameter", _PyCFunction_CAST(keyword_only_parameter), METH_FASTCALL|METH_KEYWORDS, keyword_only_parameter__doc__},
+
+static PyObject *
+keyword_only_parameter_impl(PyObject *module, PyObject *a);
+
+static PyObject *
+keyword_only_parameter(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 1
+    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(a), },
+    };
+    #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[] = {"a", NULL};
+    static _PyArg_Parser _parser = {
+        .keywords = _keywords,
+        .fname = "keyword_only_parameter",
+        .kwtuple = KWTUPLE,
+    };
+    #undef KWTUPLE
+    PyObject *argsbuf[1];
+    PyObject *a;
+
+    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 0, 0, 1, argsbuf);
+    if (!args) {
+        goto exit;
+    }
+    a = args[0];
+    return_value = keyword_only_parameter_impl(module, a);
+
+exit:
+    return return_value;
+}
+/*[clinic end generated code: output=a9212f8e6ba18bba input=a9049054013a1b77]*/