human
I wrote the below code

    alerts = []
    warnings = []
    def _ComputeThreshold(x):
        return (math.ceil(math.sqrt(x)) / 3)
    if (retry_rate['cluster_total'] > _ComputeThreshold(operation_rate['cluster_total'])):
        warnings.append(CLUSTER_TOKEN)
    for (m, v) in operation_rate['machine_data'].iteritems():
        if (retry_rate['machine_data'][m] > _ComputeThreshold(v)):
            warnings.append(m)
    return (alerts, warnings)

What's a good function header?
assistant
#Here's a good function header.

def OperationRetriesCriteria(operation_rate, retry_rate):