import { InjectionToken } from '@angular/core';
export declare const SlackUrlToken: InjectionToken<string>;
export declare class NgxSlackModule {
    /**
     * Initialize NgxSlack
     *
     * @param slackUrl Slack Webhook URL or any URL that accept POST and object { text: '...' }
     * @returns {{ngModule: NgxSlackModule, providers: [{provide: InjectionToken<string>, useValue: string}]}}
     */
    static initializeApp(slackUrl: string): {
        ngModule: typeof NgxSlackModule;
        providers: {
            provide: InjectionToken<string>;
            useValue: string;
        }[];
    };
}