export declare class GLTFExporter {
    pluginCallbacks: any[];
    static Utils: any;
    constructor();
    register(callback: any): this;
    unregister(callback: any): this;
    /**
     * Parse scenes and generate GLTF output
     * @param  {Scene or [THREE.Scenes]} input   Scene or Array of THREE.Scenes
     * @param  {Function} onDone  Callback on completed
     * @param  {Function} onError  Callback on errors
     * @param  {Object} options options
     */
    parse(input: any, onDone: any, onError: any, options?: any): void;
    parseAsync(input: any, options: any): Promise<unknown>;
}