import { HighlightState, ZoomWindow } from '../../shared/kernel';
import { Switchable } from '../../shared/options';
export interface SyncOptions extends Switchable {
    /** Charts sharing a groupId are synchronized (a common group by default). */
    groupId?: string;
    /** Synchronize node highlighting (true by default). */
    nodeInteraction?: boolean;
    /** Synchronize zoom (true by default). */
    zoom?: boolean;
}
export interface SyncMember {
    /** Highlight coming from a neighboring chart (by data index). */
    onRemoteHighlight(highlight: HighlightState | undefined): void;
    /** Zoom window coming from a neighboring chart. */
    onRemoteZoom(window: ZoomWindow): void;
}
export declare function joinSyncGroup(groupId: string, member: SyncMember): () => void;
export declare function broadcastHighlight(groupId: string, from: SyncMember, highlight: HighlightState | undefined): void;
export declare function broadcastZoom(groupId: string, from: SyncMember, window: ZoomWindow): void;
/** Feature API for widgets (via registry.getFeature('sync')). */
export declare const syncApi: {
    joinSyncGroup: typeof joinSyncGroup;
    broadcastHighlight: typeof broadcastHighlight;
    broadcastZoom: typeof broadcastZoom;
};
export type SyncApi = typeof syncApi;
export declare const syncModule: {
    readonly kind: "feature";
    readonly name: "sync";
    readonly api: {
        joinSyncGroup: typeof joinSyncGroup;
        broadcastHighlight: typeof broadcastHighlight;
        broadcastZoom: typeof broadcastZoom;
    };
};