import { Set } from 'immutable';
import { State, Id } from '../customTypings/index.d';
/**
 * @param state Map flow state
 * @param nodeId String
 * @param predecessors Set list of already determined predecessors
 */
export declare function getPredecessors(state: State, nodeId: Id, predecessors?: Set<Id>): any;
/**
 * @param state Map flow state
 * @param nodeId String
 * @param successors Set list of already determined successors
 */
export declare function getSuccessors(state: State, nodeId: Id, successors?: Set<Id>): any;