def _row_has_results(self, values):
        for ins, fn in values:
            if isinstance(ins, (streaming.MinComputation,
                                streaming.MaxComputation,
                                streaming.MeanComputation)):
                # NOTE(amaretskiy): None means this computation
                #                   has never been called
                return ins.result() is not None
        return True
Determine whether row can be assumed as having values.
dataset/ETHPy150Open openstack/rally/rally/task/processing/charts.py/Table._row_has_results