export type TaskQueueOptions<Item> = {
    batchSize: number;
    processItem: (item: Item) => unknown;
};
export declare class TaskQueue<Item> {
    readonly options: TaskQueueOptions<Item>;
    _subs: ((item: Item) => void)[];
    items: Item[];
    isPaused: boolean;
    isProcessing: boolean;
    constructor(options: TaskQueueOptions<Item>);
    push(item: Item): void;
    remove(item: Item): void;
    subscribe(subscriber: (item: Item) => void): () => void;
    process(): Promise<void>;
    stop(): void;
    start(): void;
    clear(): void;
}
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