import type { HierarchyNode } from '../types';
export interface TreemapRect {
    name: string;
    x: number;
    y: number;
    width: number;
    height: number;
    value: number;
}
export declare function squarify(nodes: HierarchyNode[], x: number, y: number, width: number, height: number): TreemapRect[];
export declare function flattenHierarchy(root: HierarchyNode): HierarchyNode[];