import { Scene } from "@babylonjs/core/scene";
import { ScriptMap } from "../loader";
/**
 * Defines the cache of all preloaded assets for scripts.
 * Used to populate decorated properties in scripts using @visibleAsAsset.
 */
export declare const scriptAssetsCache: Map<string, any>;
/**
 * Defines the map of all parsers available to parse script assets.
 * Some assets may not be needed by the game directly such as navmeshes which require @recast-navigation packages to be included.
 * This map allows to register parsers only when needed to profit from tree shaking.
 */
export declare const scriptAssetsParsers: Map<string, (parameters: IScriptAssetParserParameters) => Promise<unknown>>;
export interface IScriptAssetParserParameters {
    key: string;
    rootUrl: string;
    scene: Scene;
}
/**
 *
 * @param extension defines the extension supported by the parser. ie: "navmesh"
 * @param parser defines the parser function to parse the asset.
 */
export declare function registerScriptAssetParser(extension: string, parser: (parameters: IScriptAssetParserParameters) => Promise<unknown>): void;
/**
 * @internal
 */
export declare function _preloadScriptsAssets(rootUrl: string, scene: Scene, scriptsMap: ScriptMap): Promise<number>;