import generateUtilityClasses from '@mui/utils/generateUtilityClasses'; import generateUtilityClass from '@mui/utils/generateUtilityClass'; export function getBackdropUtilityClass(slot) { return generateUtilityClass('MuiBackdrop', slot); } const backdropClasses = generateUtilityClasses('MuiBackdrop', ['root', 'invisible']); export default backdropClasses;