def _walk_cb(self, handle_p, arg):
        handle_obj = ffi.from_handle(handle_p.data)
        self._handles.append(handle_obj)
Validate timezone.
dataset/ETHPy150Open veegee/guv/pyuv_cffi/__init__.py/Loop._walk_cb--crossover with--dataset/ETHPy150Open home-assistant/home-assistant/homeassistant/helpers/config_validation.py/time_zone