import { TaskStat } from '../TaskManager.js';
export declare class StatsBuffer {
    private readonly capacity;
    private readonly buffer;
    push(stat: TaskStat): void;
    get length(): number;
    at(i: number): TaskStat | undefined;
    latest(): TaskStat | undefined;
    query(start?: number, end?: number, intervalMs?: number): TaskStat[];
    private bsearch;
    toArray(): TaskStat[];
}