/**
 * Returns a blob url from an http: or https: url
 *
 * @remarks
 * It takes 1 argument, a url to an asset online
 *
 * `blob(url)`
 *
 * - `url` is a string, starting with http:// or https://
 *
 * ## Usage
 *
 * - `url('https://raw.githubusercontent.com/polygonjs/polygonjs-assets/master/textures/markertracking/marker_tracking1.png')` - return a url like blob:http://localhost:5000/af3f2f10-8de4-463e-9d83-82d24287f071
 *
 */
import { BaseMethod } from './_Base';
export declare class BlobExpression extends BaseMethod {
    static requiredArguments(): string[][];
    processArguments(args: any[]): Promise<string>;
}