export interface PersistedState {
    petSlug: string;
    totalEvents: number;
    level: number;
    levelName: string;
    createdAt: string;
    lastActiveAt: string;
    version: number;
}
export declare function getDefaultState(slug?: string): PersistedState;
export declare function loadState(): PersistedState;
export declare function saveState(state: PersistedState): void;
export declare function incrementEvents(state: PersistedState, count?: number): PersistedState;
export declare function detectLevelUp(oldState: PersistedState, newState: PersistedState): boolean;
//# sourceMappingURL=storage.d.ts.map