import { Signal } from './types.js';
/**
 * Global keyed signal — same [getter, setter] pair for every caller using
 * the same key. Designed for IIFE/script-tag users who can't share module scope.
 * For module-based projects, prefer exporting a signal directly.
 */
export declare function globalSignal<T>(key: string, initialValue: T): Signal<T>;
/** Clears the global registry — useful for test isolation. */
export declare function _clearGlobalSignals(): void;