export type Direction = "left" | "right";
export declare class BinarySearchNode<T> {
    parent: BinarySearchNode<T> | null;
    value: T;
    left: BinarySearchNode<T> | null;
    right: BinarySearchNode<T> | null;
    constructor(parent: BinarySearchNode<T> | null, value: T);
    static from<T>(node: BinarySearchNode<T>): BinarySearchNode<T>;
    directionFromParent(): Direction | null;
    findMinNode(): BinarySearchNode<T>;
    findMaxNode(): BinarySearchNode<T>;
    findSuccessorNode(): BinarySearchNode<T> | null;
}