/**
 * Unit tests for StentorApi - specifically trackEventBeacon
 */
declare const mockFetch: jest.Mock<any, any>;
declare const localStorageMock: {
    getItem: (key: string) => string | null;
    setItem: (key: string, value: string) => void;
    removeItem: (key: string) => void;
    clear: () => void;
    readonly length: number;
    key: (index: number) => string | null;
};
