/**
 * Copyright (c) Microblink Ltd. All rights reserved.
 */
import { HttpResponse } from "./data-structures";
export declare function getSafeUrl(base: string, ...args: string[]): string;
export declare function safeReplaceAll(input: string, substr: string, newSubstr: string): string;
export declare function httpClient(method: string, url: string, headers: {
    [key: string]: string;
}, payload?: any): Promise<HttpResponse>;
export declare function imageDataToBase64(imageData: ImageData): string;