bpo-29793: Convert some builtin types constructors to Argument Clinic. (#615)

diff --git a/Objects/clinic/structseq.c.h b/Objects/clinic/structseq.c.h
new file mode 100644
index 0000000..ed6a564
--- /dev/null
+++ b/Objects/clinic/structseq.c.h
@@ -0,0 +1,26 @@
+/*[clinic input]
+preserve
+[clinic start generated code]*/
+
+static PyObject *
+structseq_new_impl(PyTypeObject *type, PyObject *arg, PyObject *dict);
+
+static PyObject *
+structseq_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
+{
+    PyObject *return_value = NULL;
+    static const char * const _keywords[] = {"sequence", "dict", NULL};
+    static _PyArg_Parser _parser = {"O|O:structseq", _keywords, 0};
+    PyObject *arg;
+    PyObject *dict = NULL;
+
+    if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
+        &arg, &dict)) {
+        goto exit;
+    }
+    return_value = structseq_new_impl(type, arg, dict);
+
+exit:
+    return return_value;
+}
+/*[clinic end generated code: output=cd643eb89b5d312a input=a9049054013a1b77]*/