bpo-37483: add _PyObject_CallOneArg() function (#14558)
diff --git a/Doc/c-api/object.rst b/Doc/c-api/object.rst
index a84235b..6d13855 100644
--- a/Doc/c-api/object.rst
+++ b/Doc/c-api/object.rst
@@ -264,6 +264,17 @@
.. versionadded:: 3.9
+.. c:function:: PyObject* _PyObject_CallOneArg(PyObject *callable, PyObject *arg)
+
+ Call a callable Python object *callable* with exactly 1 positional argument
+ *arg* and no keyword arguments.
+
+ Return the result of the call on success, or raise an exception and return
+ *NULL* on failure.
+
+ .. versionadded:: 3.9
+
+
.. c:function:: PyObject* PyObject_Call(PyObject *callable, PyObject *args, PyObject *kwargs)
Call a callable Python object *callable*, with arguments given by the