import type fs from 'node:fs';
import type { ImportMap, SpecifierMap } from '@esmx/import';
import type { ParsedModuleConfig } from '../module-config';
/**
 * Get the list of statically imported module names from JS code. Maybe cannot handle multiple concurrent calls, not tested.
 * @param code JS code
 * @returns `Promise<string[]>` List of statically imported module names
 */
export declare function getImportsFromJsCode(code: string): Promise<string[]>;
/**
 * Get the list of statically imported module names from a JS file.
 * @param filepath JS file path
 * @returns `Promise<string[]>` List of statically imported module names
 */
export declare function getImportsFromJsFile(filepath: fs.PathLike | fs.promises.FileHandle): Promise<string[]>;
export type ImportPreloadInfo = SpecifierMap;
/**
 * Get import preload information.
 * @param specifier Module name
 * @param importMap Import map object
 * @param moduleConfig Module configuration
 * @returns
 *   - `Promise<{ [specifier: string]: ImportPreloadPathString }>` Mapping object of module names to file paths
 *   - `null` specifier does not exist
 */
export declare function getImportPreloadInfo(specifier: string, importMap: ImportMap, moduleConfig: ParsedModuleConfig): Promise<{
    [k: string]: string;
} | null>;