import type { Rspack } from '@rslib/core';
/**
 * The options for {@link ExternalBundleWebpackPlugin}.
 *
 * @public
 */
export interface ExternalBundleWebpackPluginOptions {
    /**
     * The external bundle filename.
     *
     * @example
     * ```js
     * new ExternalBundleWebpackPlugin({
     *   bundleFileName: 'lib.lynx.bundle'
     * })
     * ```
     */
    bundleFileName: string;
    /**
     * The encode method which is exported from lynx-tasm package.
     *
     * @example
     * ```js
     * import { getEncodeMode } from '@lynx-js/tasm';
     *
     * new ExternalBundleWebpackPlugin({
     *   encode: getEncodeMode()
     * })
     * ```
     */
    encode: (opts: unknown) => {
        buffer: Buffer;
    } | Promise<{
        buffer: Buffer;
    }>;
    /**
     * The engine version of the external bundle.
     *
     * @defaultValue '3.5'
     */
    engineVersion?: string | undefined;
    /**
     * The main thread chunks of the external bundle.
     *
     * @defaultValue []
     */
    mainThreadChunks?: string[] | undefined;
    /**
     * Whether to tag main thread chunks with the `JsBytecode` encoding so the
     * encoder compiles them to bytecode.
     *
     * @remarks
     * When disabled, main thread chunks are encoded as plain JavaScript source,
     * which keeps them readable for debugging and speeds up encoding.
     *
     * @defaultValue `false` when `NODE_ENV` is `'development'`, otherwise `true`
     */
    enableJsBytecode?: boolean | undefined;
}
/**
 * The webpack plugin to build and emit the external bundle.
 *
 * @public
 */
export declare class ExternalBundleWebpackPlugin {
    #private;
    private options;
    constructor(options: ExternalBundleWebpackPluginOptions);
    apply(compiler: Rspack.Compiler): void;
}