/**
 * One usage rollup row. `key` is ``"total"`` for the summary, an ISO date
 * (``YYYY-MM-DD``, UTC) for ``group_by=day``, or a public model id for
 * ``group_by=model``.
 */
export interface UsageBucket {
    /** What this bucket rolls up: `"total"`, an ISO date (`YYYY-MM-DD`, UTC), or a public model id — per `group_by`. */
    key: string;
    /** Jobs submitted in this bucket, chat completions included. */
    jobs: number;
    /** Net amount spent in this bucket. */
    spent: number;
}