import { fabric } from 'fabric';
import { Region } from '../../types';
/**
 * Hook for managing OCR loading icon animation
 * @param canvas - Fabric.js canvas instance
 * @returns Object containing updateOCRLoadingIcon function and ocrLoadingIconMapRef
 */
export declare const useOCRLoadingIcon: (canvas: fabric.Canvas | undefined) => {
    updateOCRLoadingIcon: (rect: fabric.Rect, region: Region, show: boolean) => void;
    ocrLoadingIconMapRef: import('react').RefObject<Map<fabric.Rect, fabric.Group>>;
};