useBadge(): { clearBadge: () => Promise<void>; setBadge: (count?: number) => Promise<void>; get state(): BadgeState; subscribe(callback: (state: BadgeState) => void): () => boolean;} Returns {
clearBadge: () => Promise<void>;
setBadge: (count?: number) => Promise<void>;
get state(): BadgeState;
subscribe(callback: (state: BadgeState) => void): () => boolean;
}