export declare function getHiddenCssUtilityClass(slot: string): string;
declare const hiddenCssClasses: Record<"root" | "xlDown" | "xlUp" | "onlyXl" | "lgDown" | "lgUp" | "onlyLg" | "mdDown" | "mdUp" | "onlyMd" | "smDown" | "smUp" | "onlySm" | "xsDown" | "xsUp" | "onlyXs", string>;
export default hiddenCssClasses;