export interface CloudSession {
    access_token: string;
    refresh_token?: string;
    /** Supabase-compatible Unix timestamp in seconds. */
    expires_at?: number;
}
export interface SessionOptions {
    home?: string;
}
export declare function readCloudSession(options?: SessionOptions): Promise<CloudSession | null>;
export declare function writeCloudSession(session: CloudSession, options?: SessionOptions): Promise<void>;
export declare function deleteCloudSession(options?: SessionOptions): Promise<void>;
export declare function isSessionExpired(session: CloudSession, now?: number): boolean;