/**
 * Abstract storage provider interface
 * Defines the contract for all storage implementations
 */
import type { StorageProvider, VersionInfo } from '../types/storage.js';
export type { StorageProvider, VersionInfo };
/**
 * Error thrown when a storage operation fails
 */
export declare class StorageError extends Error {
    readonly operation: string;
    readonly key?: string | undefined;
    readonly cause?: Error | undefined;
    constructor(message: string, operation: string, key?: string | undefined, cause?: Error | undefined);
}
/**
 * Error thrown when a key is not found
 */
export declare class KeyNotFoundError extends StorageError {
    constructor(key: string);
}
/**
 * Error thrown when a version is not found
 */
export declare class VersionNotFoundError extends StorageError {
    constructor(key: string, version: number);
}
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