type Callback = () => unknown;
interface Task {
    id: number;
    callback: Callback | null;
    priority: number;
    cancelled: boolean;
}
export declare function unstable_scheduleCallback(priority: number, cb: Callback): Task;
export declare function unstable_cancelCallback(task: Task): void;
export declare function unstable_shouldYield(): boolean;
export declare function unstable_requestPaint(): void;
export declare function unstable_now(): number;
export declare function unstable_getCurrentPriorityLevel(): number;
export declare function unstable_runWithPriority<T>(_priority: number, fn: () => T): T;
export declare function unstable_next<T>(fn: () => T): T;
export declare function unstable_wrapCallback<T extends (...args: any[]) => any>(fn: T): T;
export declare function unstable_continueExecution(): void;
export declare function unstable_pauseExecution(): void;
export declare function unstable_getFirstCallbackNode(): Task | null;
export declare const unstable_IdlePriority = 5;
export declare const unstable_ImmediatePriority = 1;
export declare const unstable_LowPriority = 4;
export declare const unstable_NormalPriority = 3;
export declare const unstable_UserBlockingPriority = 2;
declare const _default: {
    unstable_scheduleCallback: typeof unstable_scheduleCallback;
    unstable_cancelCallback: typeof unstable_cancelCallback;
    unstable_shouldYield: typeof unstable_shouldYield;
    unstable_requestPaint: typeof unstable_requestPaint;
    unstable_now: typeof unstable_now;
    unstable_getCurrentPriorityLevel: typeof unstable_getCurrentPriorityLevel;
    unstable_runWithPriority: typeof unstable_runWithPriority;
    unstable_next: typeof unstable_next;
    unstable_wrapCallback: typeof unstable_wrapCallback;
    unstable_continueExecution: typeof unstable_continueExecution;
    unstable_pauseExecution: typeof unstable_pauseExecution;
    unstable_getFirstCallbackNode: typeof unstable_getFirstCallbackNode;
    unstable_IdlePriority: number;
    unstable_ImmediatePriority: number;
    unstable_LowPriority: number;
    unstable_NormalPriority: number;
    unstable_UserBlockingPriority: number;
};
export default _default;