import type { StorageService } from '../../storage/storage.js';
import type { StorageType, Optional } from '@sudobility/types';
export declare class RNStorageService implements StorageService {
    private storage;
    constructor();
    getItem(key: string): Promise<Optional<string>>;
    setItem(key: string, value: string): Promise<void>;
    removeItem(key: string): Promise<void>;
    clear(): Promise<void>;
    getAllKeys(): Promise<string[]>;
    isAvailable(): boolean;
    getType(): StorageType;
}
export declare class RNSerializedStorageService {
    private storage;
    constructor();
    getObject<T>(key: string): Promise<Optional<T>>;
    setObject<T>(key: string, value: T): Promise<void>;
    removeObject(key: string): Promise<void>;
    hasObject(key: string): Promise<boolean>;
}
export declare function getStorageService(): RNStorageService;
export declare function initializeStorageService(service?: RNStorageService): RNStorageService;
export declare function resetStorageService(): void;
//# sourceMappingURL=storage-singleton.d.ts.map