import { Handlers } from "../src/interfaces";
export declare class TreeNode {
    value: number;
    left: TreeNode | null;
    right: TreeNode | null;
    constructor(value: number);
    addLeft(child: TreeNode): void;
    addRight(child: TreeNode): void;
    calculateSum(): number;
}
export declare class TreeWorkerHandlers implements Handlers {
    calculateTreeSum(root: TreeNode): number;
}