import type { ExternalItem, ExternalsType } from '@rspack/core';
export type AllowlistItemFunction = (request: string) => boolean;
export type AllowlistItem = string | RegExp | AllowlistItemFunction;
export interface NodeExternalsOptions {
    /**
     * Method of importing requested module.
     * @default `module`
     */
    importType?: ExternalsType;
    /**
     * Defines modules that should be included to bundle.
     * By default css-loader and `*.css` files allowed.
     */
    allow?: AllowlistItem | AllowlistItem[];
}
/**
 * Simple modern analogue of `webpack-node-externals`.
 * Marks all files from `node_modules` as externals.
 * @param options Options.
 * @returns Externals function.
 */
export declare function nodeExternals({ importType, allow, }?: NodeExternalsOptions): ExternalItem;