import { NgxGovukUtilsService } from 'ngx-govuk';
import * as i0 from "@angular/core";
/**
 * Component to be used to define the accordion panels.
 *
 * The content slot should contain the content of the accordion panel.
 *
 * @selector ngx-govuk-accordion-panel
 */
export declare class NgxGovukAccordionPanel {
    private utilsService;
    get className(): string;
    /**
     * The heading of the panel
     * @required
     */
    heading: import("@angular/core").InputSignal<string>;
    /**
     * Flag to determine if the accordion panel is expanded.
     */
    isExpanded: import("@angular/core").WritableSignal<boolean>;
    headingId: string;
    contentId: string;
    constructor(utilsService: NgxGovukUtilsService);
    /**
     * Toggles the accordion panel visibility.
     */
    toggle(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgxGovukAccordionPanel, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NgxGovukAccordionPanel, "ngx-govuk-accordion-panel", never, { "heading": { "alias": "heading"; "required": true; "isSignal": true; }; }, {}, never, ["*"], true, never>;
}