import * as i0 from "@angular/core";
/**
 * Directive to add alternate surface class, <code>class="v-alternate"</code>, to the host element.
 */
export declare class AlternateDirective {
    get hostClass(): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<AlternateDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<AlternateDirective, "[vAlternate]", never, {}, {}, never, never, true, never>;
}