interface JSONViewerProps {
    data?: unknown;
    /** Collapse all nodes by default */
    collapsed?: boolean;
    /** Expand nodes up to this depth (0 = only root). Ignored when collapsed. */
    defaultExpandDepth?: number;
    /** Show toolbar (copy / expand / collapse) */
    showToolbar?: boolean;
    /** Root label in the header */
    label?: string;
    /** Max height; scrolls inside */
    maxHeight?: string;
    class?: string;
    oncopy?: (json: string) => void;
}
declare const JSONViewer: import("svelte").Component<JSONViewerProps, {}, "">;
type JSONViewer = ReturnType<typeof JSONViewer>;
export default JSONViewer;