export declare type MediaPropsType = ['' | 'xsm' | 'sm' | 'md' | 'lg' | 'xlg', '' | 'xsm' | 'sm' | 'md' | 'lg' | 'xlg' | undefined];
export declare const externalClasses: (props: {
    className?: string;
    media?: MediaPropsType;
}) => string;