import { Constructor, AbstractConstructor } from './constructor';
import { CanDisable } from './disabled';
export interface HasTabIndex {
    /** Tabindex of the component. */
    tabIndex: number;
    /** Tabindex to which to fall back to if no value is set. */
    defaultTabIndex: number;
}
type HasTabIndexConstructor = Constructor<HasTabIndex> & AbstractConstructor<HasTabIndex>;
/** Mixin to augment a directive with a `tabIndex` property. */
export declare function mixinTabIndex<T extends AbstractConstructor<CanDisable>>(base: T, defaultTabIndex?: number): HasTabIndexConstructor & T;
export {};