import { TemplateResult } from 'lit';
import NileElement from '../internal/nile-element';
import type { CSSResultGroup } from 'lit';
export declare class NileDetail extends NileElement {
    static styles: CSSResultGroup;
    detail: HTMLDetailsElement;
    header: HTMLElement;
    body: HTMLElement;
    open: boolean;
    heading: string;
    description: string;
    expandIconPlacement: 'left' | 'right';
    disabled: boolean;
    private _detailOpen;
    firstUpdated(): void;
    private _handleSummaryClick;
    private _handleSummaryKeyDown;
    handleOpenChange(): Promise<void>;
    show(): Promise<unknown>;
    hide(): Promise<unknown>;
    private get _summaryLabel();
    render(): TemplateResult;
}
export default NileDetail;
declare global {
    interface HTMLElementTagNameMap {
        'nile-detail': NileDetail;
    }
}