/**
 * Helpers for safely accessing browser-only globals. These are necessary because
 * TraceJS can be imported in non-browser contexts (SSR, Node) where globals like
 * window, document, or navigator do not exist.
 */
export declare const getGlobalWindow: () => (Window & typeof globalThis) | null;
export declare const getDocument: () => Document | null;
export declare const getNavigator: () => Navigator | null;
export declare const getLocalStorage: () => Storage | null;