Returns, for each time bucket in the window, the request count, total cost in USD and total tokens per model.

Bucket size by period: HOUR 5 minutes, EIGHT_HOURS 30 minutes, TWENTY_FOUR_HOURS 2 hours, SEVEN_DAYS 12 hours, THIRTY_DAYS 1 day, NINETY_DAYS 1 week, SIX_MONTHS and TWELVE_MONTHS 1 calendar month. Buckets are cut in UTC, starting at the beginning of the window and stepping forward by the bucket size. For SIX_MONTHS and TWELVE_MONTHS the window begins at midnight UTC on the first of the month; for shorter periods it begins at the time of the request minus the period. With a custom start and end, the bucket size follows the length of the range: 1 hour under 2 days, 1 day under 90 days, 1 week under 365 days, otherwise 1 month, starting at start. Buckets are listed newest first.