export declare enum VertexMissing {
    CreateVertex = 0,
    IgnoreEdge = 1,
    AddEdge = 2,
    Error = 3,
}
export interface EdgeNode {
    id: string;
    type?: string;
}
export interface Edge {
    source: EdgeNode;
    destination: EdgeNode;
    isValid?: boolean;
    isVisible?: boolean;
}
export declare class Graph {
    vertices: Map<string, any>;
    edges: Set<Edge>;
    constructor(vertices?: Iterable<[string, any]>, edges?: Iterable<[string, string]>, missing?: VertexMissing);
    addVertex(key: string, data?: any, onConflict?: (old: any) => any): void;
    setVertexData(key: string, data?: any): void;
    getVertexData(key: string): any;
    hasVertex(key: string): boolean;
    removeVertex(key: string): boolean;
    addEdge(source: EdgeNode, destination: EdgeNode, isVisible?: boolean, isValid?: boolean, missing?: VertexMissing): void;
    removeEdge(edge: Edge | [string, string]): boolean;
    topSort(): Array<string>;
    hasOutgoing(vertex: string, edges?: Set<Edge>): boolean;
    hasIncoming(vertex: string, edges?: Set<Edge>): boolean;
    isConnected(): boolean;
    private connectedIter(unvisited, unusedEdges, toExpand);
    private reached(unusedEdges, from);
    hasCycles(): boolean;
    private throwMissingVertex(key);
}