import { Readable } from "stream";
import { RegistryAuth } from "../registries/docs";
declare class Helpers {
    deepClone(value: any): any;
    isURL(url: string): boolean;
    /**
     * Reads a response stream and logs its content in a human-readable format.
     * It expects the response to be a JSON stream where each line is a JSON object.
     * It parses each line and extracts the status, progress and error if present.
     * If the verbose flag is set to true, it logs each line with status and progress.
     * If the verbose flag is set to false, it logs only the final result.
     *
     * @param response - The response stream to read.
     * @param verbose - Whether to log each line or just the final result.
     */
    processStream(response: Response, verbose?: boolean): Promise<void>;
    /**
     * Converts a readable stream into a single buffer.
     *
     * @param stream - A readable stream, which can be either a Node.js Readable stream or a web ReadableStream.
     * @returns A promise that resolves with a buffer containing all the data from the stream.
     * @throws Will throw an error if the stream encounters an error during reading.
     *
     * This function listens for data, end, and error events on Node.js streams. For web streams, it uses an async iterator
     * to read the stream. The resulting data chunks are collected into a buffer.
     */
    streamToBuffer(stream: ReadableStream<any> | Readable | AsyncIterable<Uint8Array | string>): Promise<Buffer>;
    addRegistryAuthHeader(reqOptions: Record<string, any>, auth: RegistryAuth, serveraddress?: string): void;
    isValidObject(obj: any): boolean;
    isObject(obj: any): boolean;
    isNotEmptyObject(obj: any): boolean;
    isValidEmail(email: string): boolean;
    /**
     * Checks if the given object has the specified property as its own property.
     * This method does not check properties inherited through the prototype chain.
     *
     * @param obj - The object to check for the property.
     * @param prop - The name of the property to check for.
     * @returns A boolean indicating whether the object has the specified property as its own property.
     */
    hasOwnProperty(obj: any, prop: string): boolean;
}
declare const helpers: Helpers;
export default helpers;