import { WalkValues } from '@allgemein/base/utils/TreeUtils';
export declare class BaseUtils {
    static resolveByClassName<T>(objs: T[]): {
        [entityType: string]: T[];
    };
    static wait(time: number): Promise<any>;
    static interpolate(msg: string, parameter: {
        [k: string]: string;
    }): string;
    static flattenDate(d: Date): Date;
    static now(): Date;
    /**
     * https://stackoverflow.com/questions/1960473/unique-values-in-an-array
     * @param arr
     * @returns {any[]}
     */
    static unique_array(arr: any[]): any[];
    static escapeRegExp(text: string): string;
    static clone(obj: any): any;
    static uniqArr(res: any[]): any[];
    static merge(...args: any[]): any;
    static walk(root: any, fn: (v: WalkValues) => void): void;
    static get(arr: any, path?: string): any;
    static splitTyped(arr: string, sep?: string): any[];
    static set(arr: any, path: string | any[], value: any): boolean;
    static isObject(o: any): boolean;
}