import { Link } from '../renderables/Link';
import { Node } from '../types/Node';
declare class LinkSet {
    _all: Map<Node, Map<Node, Link[]>>;
    _map: Map<Node, Map<Node, Link[]>>;
    _ind: Map<Link, number>;
    constructor();
    /**
     * Add a link that goes from source to target.
     * @param source The source Node
     * @param target The target Node
     * @param link The link connecting the source and target nodes
     */
    add(source: Node, target: Node, link: Link): void;
    /**
     * Get all links between nodes a and b, regardless of direction
     * @param a A Node
     * @param b A node
     */
    allBetween(a: Node, b: Node): Link[];
    /**
     * Get links beginning at source and ending at target
     * @param source The source Node
     * @param target The target Node
     */
    between(source: Node, target: Node): Link[];
    /**
     * Execute the provided callback for every link in the set
     * @param callback The function to execute for each link. Arguments are:
     * * link: The current link being processed
     * * source: The source Node
     * * target: The target Node
     * * group: All link
     */
    forEach(callback: (link: Link, source: Node, target: Node, group: Link[]) => void): void;
    /**
     * Get the index of this link among all links that connect the same
     * two nodes. Indices are signed to indicate direction groups. Returns
     * undefined if link is not in set.
     * @param link The link
     */
    indexOf(link: Link): number | undefined;
    private _addDirectional;
    private _addNonDirectional;
    private _getNonDirectional;
}
export { LinkSet };