import { CDNLoader } from './cdn-loader.js';
/**
 * Checks a string to see if it's a valid URL
 * @param str String to test
 * @returns is URL
 */
export declare const isUrl: (str: string) => boolean;
/**
 * Checks a string to see if it's a base64 URL
 * @param str String to test
 * @returns is Base64
 */
export declare const isBase64svg: (str: string) => boolean;
/**
 * Caches and provides SVGs, loaded either by name from CDN or directly by URL.
 * Uses singleton pattern
 */
export declare class SVGLoader extends CDNLoader {
    /**
     * Creates complete source using CDN prefix and src.
     * Waits for CDN prefix to be set.
     * @param name - resource path for download
     * @returns Promise, which will be resolved with complete source.
     */
    getSrc(name: string): Promise<string>;
    /**
     * Loads icon and returns the body of the SVG
     * @param name Name of SVG to load
     * @returns SVG body of the response
     */
    loadSVG(name: string): Promise<string | undefined>;
}