import { DefaultConfig, HttpMethod, Url } from "../types/postman.types";
export declare const DEFAULT_CONFIG: DefaultConfig;
export declare class ValidationUtils {
    static isValidUrl(url: string): boolean;
    static isValidHttpMethod(method: string): method is HttpMethod;
    static isValidStatusCode(code: number): boolean;
    static cleanString(str: any): string;
    static deepClone<T>(obj: T): T;
    static mergeDefaults<T>(obj: Partial<T>, defaults: T): T;
    static extractVariables(text: string): string[];
    static normalizeUrl(url: string | Url): Url;
}