def best_promo(order):  # <2>
    return max(promo(order) for promo in promos)  # <3>

# END STRATEGY_BEST
Returns a cluster metrics provider matching the given name.
dataset/ETHPy150Open fluentpython/example-code/06-dp-1class-func/strategy_best.py/best_promo--crossover with--dataset/ETHPy150Open Yelp/paasta/paasta_tools/autoscaling_lib.py/get_cluster_metrics_provider