import { TopHeadlinesConfig, TopHeadlinesResponse, EverythingResponse, EverythingConfig, SourcesConfig } from '../interfaces/newsapi.models';
import { Observable } from 'rxjs';
export declare class NewsApiService {
    private newsApiConfigService;
    private newsApi;
    constructor(newsApiConfigService: any);
    topHeadlines(config: TopHeadlinesConfig): Observable<TopHeadlinesResponse>;
    everything(config: EverythingConfig): Observable<EverythingResponse>;
    sources(config: SourcesConfig): Observable<SourcesConfig>;
}