import type { GraphNodeId, LogicalArcGraph } from '@adam-sv/arc';
import { IComputedGraphLayout } from '.';
import { IGraphLayoutOptions } from '../types';
export declare function hierarchicalLayout<NodeType, EdgeType, NodeIdType extends GraphNodeId>(graph: LogicalArcGraph<NodeType, EdgeType, NodeIdType>, layoutOptions: IGraphLayoutOptions): Pick<IComputedGraphLayout<NodeType, NodeIdType>, 'placements' | 'topLevelNodes'>;