is PyUnicode_Decode a part of public api

[sndive]

am i allowed to use PyUnicode_Decode or PyUnicode_DecodeUTF8 in my
code
or that is not advisable?

QString s("foo");
// QString::unicode returns garbage unusable for PyUnicode_FromUnicode
PyObject *uo =
PyUnicode_Decode(s.utf8(), s.length(), "utf8", 0);