import type { Composition } from './composition';
import type { Plugin, PluginConstructor } from './plugins';
import type { Scene, SceneLoadOptions } from './scene';
import type { Engine } from './engine';
export declare const pluginLoaderMap: Record<string, PluginConstructor>;
/**
 * 注册 plugin
 * @param name
 * @param pluginClass class of plugin
 * @param itemClass class of item
 * @param isDefault load
 */
export declare function registerPlugin(name: string, pluginClass: PluginConstructor): void;
/**
 * 注销 plugin
 */
export declare function unregisterPlugin(name: string): void;
export declare class PluginSystem {
    static getPlugins(): Plugin[];
    static initializeComposition(composition: Composition, scene: Scene): void;
    static destroyComposition(comp: Composition): void;
    static onAssetsLoadStart(scene: Scene, options?: SceneLoadOptions): Promise<void[]>;
    static onAssetsLoadFinish(scene: Scene, options: SceneLoadOptions, engine: Engine): void;
}
export declare function getPluginUsageInfo(name: string): string;