GString *bt_py_common_format_exception(PyObject *py_exc_type,
PyObject *py_exc_value, PyObject *py_exc_tb,
int log_level, bool chain)
GString *bt_py_common_format_exception(PyObject *py_exc_type,
PyObject *py_exc_value, PyObject *py_exc_tb,
int log_level, bool chain)