def _get_handler(self, handler_name):
        handler_name = "handle_" + handler_name
        if handler_name in self._cts:
            return getattr(self._ct, handler_name)
        elif handler_name in self._sts:
            return getattr(self._st,  handler_name)
        else:
            msg = "cannot find handler for element {}".format(handler_name)
            log.error(msg)
dataset/ETHPy150Open Unidata/siphon/siphon/metadata.py/TDSCatalogMetadata._get_handler/original