/**
 * The Lynx `GlobalEventEmitter` module, accessible via `lynx.getJSModule('GlobalEventEmitter')`.
 *
 * Framework testing libraries can use this to trigger and listen to cross-thread events.
 *
 * @public
 */
export declare class GlobalEventEmitter {
    listeners: Record<string, Function[]>;
    addListener(eventName: string, listener: Function): void;
    removeListener(eventName: string, listener: Function): void;
    emit(eventName: string, args: any[]): void;
    clear(): void;
    removeAllListeners(eventName?: string): void;
    trigger(eventName: string, params: string | Record<any, any>): void;
    toggle(eventName: string, ...data: unknown[]): void;
}