export interface TableSortLabelClasses {
    /** Styles applied to the root element. */
    root: string;
    /** Styles applied to the root element if `direction="desc"`. */
    directionDesc: string;
    /** Styles applied to the root element if `direction="asc"`. */
    directionAsc: string;
    /** State class applied to the root element if `active={true}`. */
    active: string;
    /** Styles applied to the icon component. */
    icon: string;
    /** Styles applied to the icon component if `direction="desc"`.
     * @deprecated Combine the [.MuiTableSortLabel-icon](/material-ui/api/table-sort-label/#table-sort-label-classes-icon) and [.MuiTableSortLabel-directionDesc](/material-ui/api/table-sort-label/#table-sort-label-classes-direction-desc) classes instead. See [Migrating from deprecated APIs](/material-ui/migration/migrating-from-deprecated-apis/) for more details.
     */
    iconDirectionDesc: string;
    /** Styles applied to the icon component if `direction="asc"`.
     * @deprecated Combine the [.MuiTableSortLabel-icon](/material-ui/api/table-sort-label/#table-sort-label-classes-icon) and [.MuiTableSortLabel-directionAsc](/material-ui/api/table-sort-label/#table-sort-label-classes-direction-asc) classes instead. See [Migrating from deprecated APIs](/material-ui/migration/migrating-from-deprecated-apis/) for more details.
     */
    iconDirectionAsc: string;
}
export type TableSortLabelClassKey = keyof TableSortLabelClasses;
export declare function getTableSortLabelUtilityClass(slot: string): string;
declare const tableSortLabelClasses: TableSortLabelClasses;
export default tableSortLabelClasses;