@mui/core/composeClasses/composeClasses.d.ts

Unstyled React components with which to implement custom design systems.

export default function composeClasses<ClassKey extends string>(slots: Record<ClassKey, ReadonlyArray<string | false | undefined | null>>, getUtilityClass: (slot: string) => string, classes: Record<string, string> | undefined): Record<ClassKey, string>;