This is the list of metric queries you want to perform.
This is the unique key for the query.
This is the result of the query, a list of unique groups with result of their aggregations.
Example: "result": [ { "date": "2023-01-01", "assistantId": "123", "endedReason": "customer-ended-call", "sumDuration": 120, "avgCost": 10.5 }, { "date": "2023-01-02", "assistantId": "123", "endedReason": "customer-did-not-give-microphone-permission", "sumDuration": 0, "avgCost": 0 }, // Additional results ]