Reference Counting

https://docs.python.org/3.11/c-api/refcounting.html

• void Py_INCREF(PyObject *o)
• void Py_XINCREF(PyObject *o)
• PyObject *Py_NewRef(PyObject *o)
• PyObject *Py_XNewRef(PyObject *o)
• void Py_DECREF(PyObject *o)
• void Py_XDECREF(PyObject *o)
• void Py_CLEAR(PyObject *o)
• void Py_IncRef(PyObject *o)
• void Py_DecRef(PyObject *o)