export declare class TokenStorage {
    static BearerAccessToken: string;
    static refreshToken: string;
    static sessionId: number;
    /** In-memory cache of the decrypted profile — populated by saveUserProfile or hydrateProfile */
    static profileCache: Record<string, any> | null;
    static setSession(sessionId: any): void;
    /**
     * Stores user profile securely (encrypted in sessionStorage)
     * and keeps the token in memory for API calls.
     * Also populates profileCache so getUserDetails() works synchronously.
     */
    static saveUserProfile(signinResponse: any): Promise<boolean>;
    static updateTokens(accessToken?: string, refreshToken?: string): Promise<void>;
    /**
     * Call once at app startup (e.g. in init()) to decrypt the stored profile
     * into memory so that getUserDetails() can read it synchronously.
     */
    static hydrateProfile(): Promise<void>;
    /**
     * Clears all stored credentials and profile data.
     */
    static logout(): void;
}