export interface ThrottleSignal {
    status: number;
    retryAfterMs?: number;
    attempt: number;
}
export declare class ThrottleQueue {
    private readonly items;
    private waiter;
    private attempts;
    push(info: {
        status: number;
        retryAfterMs?: number;
    }): void;
    takeAll(): ThrottleSignal[];
    waitForItem(): Promise<void>;
    resetAttempts(): void;
}