/**
 * bem helper
 * b() // 'button'
 * b('text') // 'button__text'
 * b('text', 'disabled') // 'button__text--disabled'
 * b(['disabled', 'primary']) // 'button--disabled button--primary'
 *
 * https://github.com/youzan/vant/blob/dev/packages/utils/use/bem.ts
 */
interface Bem {
    (el?: string): string;
    (el: string, mods: string | (string | undefined)[]): string;
    (mods: (string | undefined)[]): string;
}
declare const bem: (name: string) => Bem;
export default bem;
/**
 * test
 */