import { HeaderContentBaseDirective } from './expansion-panel.common';
import * as i0 from "@angular/core";
/** @hidden @internal */
export declare class IgxExpansionPanelTitleDirective extends HeaderContentBaseDirective {
    cssClass: string;
    private get title();
    static ɵfac: i0.ɵɵFactoryDeclaration<IgxExpansionPanelTitleDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<IgxExpansionPanelTitleDirective, "igx-expansion-panel-title", never, {}, {}, never, never, true, never>;
}
/** @hidden @internal */
export declare class IgxExpansionPanelDescriptionDirective extends HeaderContentBaseDirective {
    cssClass: string;
    private get title();
    static ɵfac: i0.ɵɵFactoryDeclaration<IgxExpansionPanelDescriptionDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<IgxExpansionPanelDescriptionDirective, "igx-expansion-panel-description", never, {}, {}, never, never, true, never>;
}
/** @hidden @internal */
export declare class IgxExpansionPanelIconDirective {
    static ɵfac: i0.ɵɵFactoryDeclaration<IgxExpansionPanelIconDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<IgxExpansionPanelIconDirective, "igx-expansion-panel-icon", never, {}, {}, never, never, true, never>;
}