def property_value(row, prop):
    """Get the value of the row/object property specified by prop."""
    return {
       'TotalIngress': row.TotalIngress,
       'TotalEgress': row.TotalEgress,
       'TotalRequests': row.TotalRequests,
       'TotalBillableRequests': row.TotalBillableRequests,
       'Availability': row.Availability,
       'PercentSuccess': row.PercentSuccess,
       'AverageE2ELatency': row.AverageE2ELatency,
       'AverageServerLatency': row.AverageServerLatency,
       'PercentThrottlingError': row.PercentThrottlingError,
       'PercentTimeoutError': row.PercentTimeoutError,
       'PercentServerOtherError': row.PercentServerOtherError,
       'PercentClientOtherError': row.PercentClientOtherError,
       'AnonymousClientOtherError': row.AnonymousClientOtherError       
    }[prop]