The documentation for /api/v2/analytics/queues/summary/queue states that service level is the percentage of conversations answered within the defined threshold. When pulling raw interval data via the interval query parameter, the JSON payload returns ans (answered) and handled (handled) counts, but there is no explicit answered_within_threshold field in the interval objects. How do I programmatically calculate the service level percentage for a specific time window using only the ans, abandon, and wait fields available in the interval response? The current logic assumes ans equals handled, but abandoned calls after answer seem to skew the denominator.