type Listener = (online: boolean) => void;
type SetupFn = (setOnline: Listener) => (() => void) | undefined;
export interface OnlineManager extends ReturnType<typeof createOnlineManager> {
}
export declare const createOnlineManager: () => {
    setEventListener: (setupFn: SetupFn) => void;
    setOnline: (isOnline: boolean) => void;
    isOnline: () => boolean;
    subscribe: (listener: Listener) => () => void;
};
export declare const onlineManager: {
    setEventListener: (setupFn: SetupFn) => void;
    setOnline: (isOnline: boolean) => void;
    isOnline: () => boolean;
    subscribe: (listener: Listener) => () => void;
};
export {};