import { Emitter } from "untrue";
export type AppStateState = "background" | "foreground" | "active";
type AppStateModuleSignatures = {
    state: () => any;
};
declare class AppStateModule extends Emitter<AppStateModuleSignatures> {
    state: AppStateState | null;
    constructor();
    useAppState(): AppStateState | null;
}
export declare const AppState: AppStateModule;
export {};