Returns
| {
buckets?: {
id: string;
name: string;
remainingFraction: number;
resetTime: string;
window: string;
}[];
headroomPercent?: number
| null;
measured: boolean;
resetsAt?: string | null;
usedPercent?: number | null;
window?: string;
}
| undefined
The measured quota, or undefined when no window was measured.
Summarizes usage windows by their bottleneck: the window with the least headroom.