* Gets a reference to the accessible child, if one exists, at the
* coordinate point specified by @x and @y.
*
- * Returns: (transfer full): a reference to the accessible child, if one exists
+ * Returns: (nullable) (transfer full): a reference to the accessible
+ * child, if one exists
**/
AtkObject*
atk_component_ref_accessible_at_point (AtkComponent *component,