export interface NativeSelectClasses {
    /** Styles applied to the root element. */
    root: string;
    /** Styles applied to the select component `select` class. */
    select: string;
    /** Styles applied to the select component if `multiple={true}`. */
    multiple: string;
    /** Styles applied to the select component if `variant="filled"`. */
    filled: string;
    /** Styles applied to the select component if `variant="outlined"`. */
    outlined: string;
    /** Styles applied to the select component if `variant="standard"`. */
    standard: string;
    /** State class applied to the select component `disabled` class. */
    disabled: string;
    /** Styles applied to the icon component. */
    icon: string;
    /** Styles applied to the icon component if the popup is open. */
    iconOpen: string;
    /** Styles applied to the icon component if `variant="filled"`. */
    iconFilled: string;
    /** Styles applied to the icon component if `variant="outlined"`. */
    iconOutlined: string;
    /** Styles applied to the icon component if `variant="standard"`. */
    iconStandard: string;
    /** Styles applied to the underlying native input component. */
    nativeInput: string;
    /** State class applied to the select component `error` class. */
    error: string;
}
export type NativeSelectClassKey = keyof NativeSelectClasses;
export declare function getNativeSelectUtilityClasses(slot: string): string;
declare const nativeSelectClasses: NativeSelectClasses;
export default nativeSelectClasses;