bpo-37547: add _PyObject_CallMethodOneArg (GH-14685)
diff --git a/Doc/c-api/object.rst b/Doc/c-api/object.rst
index 8ca0344..2cf0328 100644
--- a/Doc/c-api/object.rst
+++ b/Doc/c-api/object.rst
@@ -375,6 +375,18 @@
.. versionadded:: 3.9
+.. c:function:: PyObject* _PyObject_CallMethodOneArg(PyObject *obj, PyObject *name, PyObject *arg)
+
+ Call a method of the Python object *obj* with a single positional argument
+ *arg*, where the name of the method is given as a Python string object in
+ *name*.
+
+ Return the result of the call on success, or raise an exception and return
+ *NULL* on failure.
+
+ .. versionadded:: 3.9
+
+
.. c:function:: PyObject* _PyObject_Vectorcall(PyObject *callable, PyObject *const *args, size_t nargsf, PyObject *kwnames)
Call a callable Python object *callable*, using