export declare class StorageUtils {
    private static isWindowListenerAttached;
    private static storageKeyToRemove;
    static attachChangeDetection: (callback: any) => void;
    static detachChangeDetection: (callback: any) => void;
    private static handleBeforeUnload;
    static setItem: (storageKey: string, storageValue: any) => void;
    static getItem: (storageKey: string) => any;
    static removeItem: (storageKey: string) => void;
}
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