declare global {
    interface Window {
        chrome?: {};
    }
}
export declare const IS_CHROME: boolean;
export declare const IS_FIREFOX: boolean;
export declare let daysActiveCount: number;
/**
 * Function called upon initial app load that checks if the user is visiting
 * on a new day, and if so, updates persistent local storage with that information
 */
export declare function updateUserSessionStores(): void;
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