export interface IndentOptions {
    char?: string;
    length?: number;
    prefix?: string;
    sufffix?: string;
}
export declare const IndentDefaultOptions: IndentOptions;
export declare type IndentStr = string | (string | string[] | string[][] | any)[];
/**
 * @param v: `string | string[] | string[][] ...`
 * @param n: presupposed indentation
 */
declare const indent: (v: IndentStr, n?: number | undefined, options?: IndentOptions | undefined) => string;
export default indent;