import { CommandStorage, StorageConfig, StoredCommand } from '../types/storage';
/**
 * Base class for command history storage implementations
 */
export declare abstract class BaseStorage implements CommandStorage {
    protected config: Required<StorageConfig>;
    constructor(config?: StorageConfig);
    /**
     * Add a command to history, enforcing storage limits
     */
    addStoredCommand(command: StoredCommand): Promise<void>;
    /**
     * Get all stored commands, ordered by timestamp ascending
     */
    abstract getStoredCommands(): Promise<StoredCommand[]>;
    /**
     * Clear all stored commands
     */
    abstract clear(): Promise<void>;
    /**
     * Save commands to storage
     * @protected
     */
    protected abstract saveCommands(commands: StoredCommand[]): Promise<void>;
}