def get_fifteen_minute_rate(self):
        return self.meter.get_fifteen_minute_rate()
get flavor metadata ui converter.
dataset/ETHPy150Open dreid/yunomi/yunomi/core/timer.py/Timer.get_fifteen_minute_rate--crossover with--dataset/ETHPy150Open openstack/compass-core/compass/db/api/metadata_holder.py/_get_flavor_metadata_ui_converter