Issue #16148: implemented PEP 424
diff --git a/Include/abstract.h b/Include/abstract.h
index 44b5af7..8148675 100644
--- a/Include/abstract.h
+++ b/Include/abstract.h
@@ -403,9 +403,8 @@
      PyAPI_FUNC(Py_ssize_t) PyObject_Length(PyObject *o);
 #define PyObject_Length PyObject_Size
 
-#ifndef Py_LIMITED_API
-     PyAPI_FUNC(Py_ssize_t) _PyObject_LengthHint(PyObject *o, Py_ssize_t);
-#endif
+PyAPI_FUNC(int) _PyObject_HasLen(PyObject *o);
+PyAPI_FUNC(Py_ssize_t) PyObject_LengthHint(PyObject *o, Py_ssize_t);
 
        /*
      Guess the size of object o using len(o) or o.__length_hint__().