import type { GraphEngine } from "../core/graph-engine.js";
import type { NodeInterface } from "../graph/graph.js";
export type ChainInteractionSource = 'node' | 'collapsed-marker' | 'expanded-marker' | 'collapsed-outline' | 'expanded-outline';
export declare function resolveChainInteractionSource(info: any): ChainInteractionSource;
export declare function getRepresentativeNodes(engine: GraphEngine | null | undefined): NodeInterface[];
export type ChainOutlineGetter = (node: NodeInterface) => [number, number][] | null;
export declare function createChainOutlineGetter(engine: GraphEngine | null | undefined): ChainOutlineGetter;
export interface CollapsedChainLayerData {
    representativeNodes: NodeInterface[];
    collapsedNodes: NodeInterface[];
    collapsedOutlineNodes: NodeInterface[];
    expandedNodes: NodeInterface[];
    expandedOutlineNodes: NodeInterface[];
    getChainOutlinePolygon: ChainOutlineGetter;
    outlineUpdateTrigger: string;
}
export declare function buildCollapsedChainLayers(engine: GraphEngine | null | undefined): CollapsedChainLayerData | null;
//# sourceMappingURL=collapsed-chains.d.ts.map