import * as i0 from "@angular/core";
/**
 * Service that installs CSS/JS dynamically
 */
export declare class DependencyService {
    private document;
    constructor(document: Document);
    /**
     * Install a Javascript file into the webpage on-demand
     * @param id Unique identifier for the JS script
     * @param src URL of the script
     * @param globalkey A global object the script will provide.
     *  Providing this will ensure a promise only resolves after the
     *  specified global object is provided, with a timeout of 500ms
     */
    loadScript(id: string, src: string, globalkey?: string): Promise<void>;
    static ɵfac: i0.ɵɵFactoryDeclaration<DependencyService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<DependencyService>;
}