/**
 * Image Gallery Reducer
 *
 * Pure reducer for Image Gallery state management.
 * Handles grid interactions, lightbox navigation, touch gestures, and animations.
 */
import type { Reducer } from '../../types.js';
import type { ImageGalleryState, ImageGalleryAction, ImageGalleryDependencies, ImageGalleryConfig } from './image-gallery.types.js';
/**
 * Create initial Image Gallery state
 */
export declare function createInitialImageGalleryState(config?: ImageGalleryConfig): ImageGalleryState;
/**
 * Image Gallery reducer
 */
export declare const imageGalleryReducer: Reducer<ImageGalleryState, ImageGalleryAction, ImageGalleryDependencies>;
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