import type { EdgePdfViewer } from '@edgepdf/viewer-js';
/**
 * Return type for useViewer hook
 */
export interface UseViewerReturn {
    /** Viewer instance */
    viewer: EdgePdfViewer | null;
    /** Whether viewer is initialized */
    isInitialized: boolean;
    /** Get the Leaflet map instance */
    getMap: () => L.Map | null;
    /** Check if viewer is initialized */
    checkInitialized: () => boolean;
    /** Whether viewer is in fullscreen mode */
    isFullscreen: boolean;
    /** Toggle fullscreen mode */
    toggleFullscreen: () => void;
}
/**
 * Hook to access and interact with the viewer instance
 *
 * Provides access to the EdgePdfViewer instance and common viewer operations.
 *
 * @returns Viewer instance and utility functions
 *
 * @example
 * ```tsx
 * function MyComponent() {
 *   const { viewer, isInitialized, getMap } = useViewer();
 *
 *   useEffect(() => {
 *     if (isInitialized && viewer) {
 *       const map = getMap();
 *       // Use map...
 *     }
 *   }, [isInitialized, viewer, getMap]);
 * }
 * ```
 */
export declare function useViewer(): UseViewerReturn;
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