import type { ChunkImport } from "./ChunkImport";
export type Chunk = {
    chunk_id: number;
    /**
     * ```js
     * import { defineConfig } from 'rolldown';
     * export default defineConfig({
     *   input: {
     *     main: './index.ts',
     *   },
     *   output: {
     *     advancedChunks: {
     *       groups: [
     *         {
     *           name: 'npm-libs',
     *           test: /node_modules/,
     *         },
     *       ],
     *     },
     *   },
     * });
     * ```
     * - `main` is the name, if this chunk is an entry chunk.
     * - `npm-libs` is the name, if this chunk is created by `output.advancedChunks`.
     */
    name: string | null;
    /**
     * ```js
     * import { defineConfig } from 'rolldown';
     * export default defineConfig({
     *   input: {
     *     main: './index.ts',
     *   },
     *   output: {
     *     advancedChunks: {
     *       groups: [
     *         {
     *           name: 'npm-libs',
     *           test: /node_modules/,
     *         },
     *       ],
     *     },
     *   },
     * });
     * ```
     * - `advanced_chunk_group_id` will be `0` if this chunk is created by `output.advancedChunks`.
     */
    advanced_chunk_group_id: number | null;
    is_user_defined_entry: boolean;
    /**
     * A entry could be both user-defined and async.
     */
    is_async_entry: boolean;
    entry_module: string | null;
    modules: Array<string>;
    reason: 'advanced-chunks' | 'preserve-modules' | 'entry' | 'common';
    imports: Array<ChunkImport>;
};