/**
 * Checks if sessionStorage is available in the current environment.
 */
export declare const isSessionStorageAvailable: () => boolean;
/**
 * Gets a value from sessionStorage.
 */
export declare const getSessionStorage: (key: string) => string | null;
/**
 * Sets a value in sessionStorage.
 */
export declare const setSessionStorage: (key: string, value: string) => boolean;
/**
 * Removes a value from sessionStorage.
 */
export declare const removeSessionStorage: (key: string) => boolean;