import type { HeadingProperties } from '@engie-group/fluid-types';
import * as i0 from "@angular/core";
export declare class HeadingDirective implements HeadingProperties {
    scale?: HeadingProperties['scale'];
    variant?: HeadingProperties['variant'];
    isNotInvertible?: HeadingProperties['isNotInvertible'];
    protected get classes(): {
        [x: string]: boolean | undefined;
        'nj-heading': boolean;
        'nj-heading--not-invertible': boolean | undefined;
    };
    static ɵfac: i0.ɵɵFactoryDeclaration<HeadingDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<HeadingDirective, "[njHeading]", never, { "scale": { "alias": "scale"; "required": false; }; "variant": { "alias": "variant"; "required": false; }; "isNotInvertible": { "alias": "isNotInvertible"; "required": false; }; }, {}, never, never, true, never>;
    static ngAcceptInputType_isNotInvertible: unknown;
}