import { RendererFactory2 } from '@angular/core';
import { Observable } from 'rxjs';
/**
 * @dynamic
 * @see https://angular.io/guide/angular-compiler-options#strictmetadataemit
 *
 * @author Dmytro Parfenov <dmitryparfenov937@gmail.com>
 */
export declare class SocialAuthUtilService {
    private readonly document;
    private readonly rendererFactory;
    private readonly renderer;
    constructor(document: Document, rendererFactory: RendererFactory2);
    /**
     * Load an external script
     *
     * @param attributes a key-value pair of script attributes.
     * Details {@link https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script}
     * @param append where the script will appended
     */
    loadScript(attributes: {
        src: string;
        [key: string]: any;
    }, append: 'head' | 'body'): Observable<Event>;
    private createRenderer;
}