import * as i0 from "@angular/core";
/**
 * Directive that provides the tab container with data about its child tabs.
 * The directive sets its own active state and adds aria attributes.
 *
 * @example
 * <nggv-tabs>
 *     <article tab="Tab title 1"> <!-- Content --> </article>
 *     <article tab="Tab title 2" [active]="true"> <!-- Content --> </article>
 *     <article tab="Tab title 3" disabled> <!-- Content --> </article>
 *     <article tab="<strong>Tab title 4</strong>"> <!-- Content --> </article>
 * </nggv-tabs>
 */
export declare class TabDirective {
    /** @internal */
    baseClass: boolean;
    /** @internal */
    role: string;
    /** Special property used for selecting DOM elements during automated UI testing. */
    thook: string | null | undefined;
    /** Sets whether this tab should be the active tab on load. */
    active: boolean;
    /** @internal */
    get hidden(): boolean;
    /** Sets the title displayed in the tab list for this child. */
    tab: string;
    /** Sets whether this tab should be able to be selected. */
    disabled: boolean;
    /** Identifier used for aria attributes and selection. */
    id: string | number | undefined;
    /** @internal */
    get attrId(): string;
    /** @internal */
    get ariaLabelledby(): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<TabDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<TabDirective, "[tab]", never, { "thook": { "alias": "thook"; "required": false; }; "active": { "alias": "active"; "required": false; }; "tab": { "alias": "tab"; "required": false; }; "disabled": { "alias": "disabled"; "required": false; }; "id": { "alias": "id"; "required": false; }; }, {}, never, never, false, never>;
}