/**
 * Checks if a value is a plain object (not an array, function, or other object type)
 */
export declare const isObject: (obj: unknown) => obj is Record<string, any>;
export type ConfigLoader = 'jiti' | 'native';
export type LoadConfigOptions = {
    /**
     * The root path to resolve the config file.
     * @default process.cwd()
     */
    cwd?: string;
    /**
     * The path to the config file, can be a relative or absolute path.
     * If not provided, the function will search for the config file in the `cwd`.
     */
    path?: string;
    /**
     * A custom meta object to be passed into the config function.
     */
    meta?: Record<string, unknown>;
    /**
     * The environment mode to be passed into the config function.
     * @default process.env.NODE_ENV
     */
    envMode?: string;
    /**
     * Specify the config loader, can be `jiti` or `native`.
     * - 'jiti': Use `jiti` as loader, which supports TypeScript and ESM out of the box
     * - 'native': Use native Node.js loader, requires TypeScript support in Node.js >= 22.6
     * @default 'jiti'
     */
    loader?: ConfigLoader;
    /**
     * The list of config file names to search for.
     * For example: ['app.config.ts', 'app.config.js']
     * @default []
     */
    configFiles?: string[];
};
export type LoadConfigResult<T extends Record<string, any> = Record<string, any>> = {
    /**
     * The loaded configuration object with specified type.
     */
    content: T;
    /**
     * The path to the loaded configuration file.
     * Return `null` if the configuration file is not found.
     */
    filePath: string | null;
};
/**
 * Resolves the path to the config file.
 */
export declare const resolveConfigPath: (root: string, configFiles: string[], customConfig?: string) => string | null;
/**
 * Loads configuration from a file with generic type support.
 */
export declare function loadConfig<T extends Record<string, any> = Record<string, any>>({ cwd, path: configPath, meta, envMode, loader, configFiles, }?: LoadConfigOptions): Promise<LoadConfigResult<T>>;
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