import { ChartPlugin } from '../types';
/**
 * VeloPlot Engine - Chart Sync Plugin
 *
 * Provides synchronization between multiple chart instances.
 *
 * @module plugins/sync
 */
export * from '../../core/sync';
export interface PluginSyncConfig {
    /** Group ID to join */
    groupId?: string;
    /** Sync axes: 'x' | 'y' | 'both' */
    syncAxes?: "x" | "y" | "both";
}
/**
 * VeloPlot Sync Plugin
 *
 * @deprecated Use `ChartGroup` / `createChartGroup` from `velo-plot` (or `velo-plot/full`) instead.
 * This plugin stub does not perform synchronization. Kept for backward-compatible imports only.
 * **Removed in v4.0.**
 */
export declare function PluginSync(config?: PluginSyncConfig): ChartPlugin<PluginSyncConfig>;
export default PluginSync;