import { AbstractEngine } from "@babylonjs/core/Engines/abstractEngine";
export interface IPreloadAssetsToDatabaseOptions {
    engine?: AbstractEngine;
    /**
     * Defines wether to disable loading and saving images to the database.
     * This is particularly useful when the application supports compressed KTX textures. So only KTX textures are stored.
     */
    disableImages?: boolean;
    /**
     * A callback function that is called with the progress of the asset loading process, as a value between 0 and 1.
     * @param progress defines the progress of the asset loading process, as a value between 0 and 1.
     */
    onProgress?: (progress: number) => void;
}
/**
 * Preloads the assets used by the scenes into the database.
 * This can be used to preload the assets before starting the application or to update the database with new assets after a new deployment.
 * This is particularly useful to improve loading times when the application with a slow network connection, as the assets will be loaded from the local database instead of being downloaded from the server each time.
 * @param databaseName defines the name of the database to create (if doesn't exists) and open and save files to it
 * @param rootUrl defines the root url to load the scenes used files list and the scene manifest files from. Typically "/scenes/".
 * @param options defines the options for preloading assets, including a callback function to be called with the progress of the asset loading process
 */
export declare function preloadAssetsToDatabase(databaseName: string, rootUrl: string, options?: IPreloadAssetsToDatabaseOptions): Promise<void>;