import { EdgeData, NodeData } from '../types';
/**
 * Helper function to determine if edge already has a link.
 */
export declare function hasLink(edges: EdgeData[], from: NodeData, to: NodeData): boolean;
/**
 * Detect if there is a circular reference from the from to the source node.
 */
export declare function detectCircular(nodes: NodeData[], edges: EdgeData[], fromNode: NodeData, toNode: NodeData): boolean;
/**
 * Given a node id, get all the parent nodes recursively.
 */
export declare const getParentsForNodeId: (nodes: NodeData[], edges: EdgeData[], startId: string) => any[];
/**
 * Get edge data given a node.
 */
export declare function getEdgesByNode(edges: EdgeData[], node: NodeData): {
    to: any[];
    from: any[];
    all: any[];
};