/** This module is browser compatible. */
export declare type direction = "left" | "right";
export declare class BSNode<T> {
    parent: BSNode<T> | null;
    value: T;
    left: BSNode<T> | null;
    right: BSNode<T> | null;
    constructor(parent: BSNode<T> | null, value: T);
    static from<T>(node: BSNode<T>): BSNode<T>;
    directionFromParent(): direction | null;
    findMinNode(): BSNode<T>;
    findMaxNode(): BSNode<T>;
    findSuccessorNode(): BSNode<T> | null;
}