import type { SankeyLayoutLink, SankeyLayoutNode } from '../types/sankey-internal.js';
/** The transitive data flow reachable from a node: its related nodes and every link crossed while collecting them. */
export interface SankeyRelatedFlow {
    nodes: SankeyLayoutNode[];
    links: SankeyLayoutLink[];
}
/**
 * Traverses the full data flow of `node`: every node feeding into it
 * (following `targetLinks` upstream) and every node it feeds into (following
 * `sourceLinks` downstream), transitively, plus every link crossed while
 * doing so, including links between two related nodes that never touch
 * `node` itself. `node` itself is excluded from `nodes`.
 *
 * The two directions are walked separately on purpose. A single undirected
 * traversal would step back down from an ancestor into that ancestor's other
 * branches and end up returning the whole connected component, pulling in
 * siblings that neither feed the hovered node nor are fed by it.
 */
export declare function getRelatedSankeyFlow(node: SankeyLayoutNode): SankeyRelatedFlow;
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