import { IBinaryTree } from '../../common/types';
export declare function isPlainObj(data: any): data is object;
export declare function array1dTo2d<T>(data: T[], width?: number): T[][];
export declare function array1dToBinayTree<T>(data: T[]): IBinaryTree<T> | null;
export declare function arrayHeapToBinaryTree<T>(data: T[]): IBinaryTree<T> | null;
export declare function flipArray2D<T>(data: T[][]): T[][];
export declare const getStringWidth: {
    (string: string): number;
    default: any;
};