import type { HierarchyRectangularNode } from 'd3-hierarchy';
import type { ClusterNode, LeafNode } from '../types/guards/node-guards.js';
import type { InternalTreeMapNode } from '../types/internal.js';
export declare const splitNodesByDepth: (nodes: HierarchyRectangularNode<InternalTreeMapNode>[]) => {
    clusters: HierarchyRectangularNode<ClusterNode>[];
    leafs: HierarchyRectangularNode<LeafNode>[];
};
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