import { LitElement } from 'lit';
/**
 * Read-only JSON/source viewer for admin and developer surfaces.
 *
 * @slot toolbar - Optional controls above the source pane.
 * @csspart chrome - Viewer frame.
 * @csspart toolbar - Optional toolbar wrapper.
 * @csspart gutter - Line number gutter.
 * @csspart code - Formatted JSON code block.
 */
export declare class W1cJsonViewer extends LitElement {
    value: unknown;
    text: string;
    indent: number;
    lineNumbers: boolean;
    render(): import("lit").TemplateResult<1>;
    private getSource;
    private stringifyValue;
    private formatText;
    static styles: import("lit").CSSResult;
}
declare global {
    interface HTMLElementTagNameMap {
        'w1c-json-viewer': W1cJsonViewer;
    }
}