export interface IRateLimitState {
    remaining: number;
    limit?: number;
    reset: number;
}
export default class RateLimit {
    private _state;
    update(r: IRateLimitState): IRateLimitState;
    doReset(inFlight?: number): {
        remaining: number;
        limit: number;
        reset: number;
    };
    consume(running?: number): void;
    readonly available: number;
}