export interface ButtonClasses {
    /** Class name applied to the root element. */
    root: string;
    /** Class name applied to the Button if `color="primary"`. */
    colorPrimary: string;
    /** Class name applied to the Button if `color="error"`. */
    colorError: string;
    /** Class name applied to the Button if `variant="filled"`. */
    filled: string;
    /** Class name applied to the Button if `variant="outlined"`. */
    outlined: string;
    /** Class name applied to the Button if `variant="text"`. */
    text: string;
}
export type ButtonClassKey = keyof ButtonClasses;
export declare function getButtonUtilityClass(slot: string): string;
declare const buttonClasses: ButtonClasses;
export default buttonClasses;