/**
 * Storage and Checkpoint Types
 *
 * Defines the data structures for persistent storage and checkpointing.
 */
/**
 * Checkpoint data for recovery
 */
export interface CheckpointData {
    /**
     * Checkpoint ID
     */
    checkpointId: string;
    /**
     * State at this checkpoint
     */
    state: Map<string, any>;
    /**
     * Timestamp when checkpoint was created
     */
    timestamp_ms: number;
    /**
     * Operations included in this checkpoint
     */
    operations: any[];
}
/**
 * Storage backend interface
 */
export interface StorageBackend {
    /**
     * Store data
     */
    store(key: string, value: any): Promise<void>;
    /**
     * Retrieve data
     */
    retrieve(key: string): Promise<any>;
    /**
     * Delete data
     */
    delete(key: string): Promise<void>;
    /**
     * List keys
     */
    list(prefix: string): Promise<string[]>;
}
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