import { Api, GetCategoriesOptions, GetFeedsOptions, GetHeadlinesOptions } from './api';
import { Article, Category, Feed, Headline } from './api-types';
export declare class ApiImpl implements Api {
    private endpoint;
    private sessionId;
    private constructor();
    static build(endpoint: string): Api;
    getArticle(articleId: number): Promise<Article>;
    getCategories(options?: GetCategoriesOptions): Promise<Category[]>;
    getFeeds(options?: GetFeedsOptions): Promise<Feed[]>;
    getHeadlines(options?: GetHeadlinesOptions): Promise<Headline[]>;
    getUnread(): Promise<number>;
    isLoggedIn(): Promise<boolean>;
    login(user: string, password: string): Promise<void>;
    logout(): Promise<void>;
    private makeRequest;
}
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