import { Flow as FlowDefinition } from '@chix/common';
import { Loader, LoaderResponse, PreloadResult } from '@chix/loader';
export interface NPMLoaderOptions {
    paths?: string[];
}
export declare class NPMLoader extends Loader {
    pkgKey: string;
    sources: {
        '@': {};
    };
    options: {
        paths: string[];
    };
    constructor(options?: NPMLoaderOptions);
    _init(): void;
    preload(): Promise<PreloadResult>;
    load(flow: FlowDefinition | FlowDefinition[]): Promise<LoaderResponse>;
    saveNodeDefinition(): void;
}