Coverage for agentos/checkpoint/__init__.py: 100%

1""" 

2AgentOS Checkpointer — 对话与工作流持久化引擎。 

3 

4参考 LangGraph PostgresSaver 设计，实现: 

5 - 故障恢复：Agent 崩溃后从最近 checkpoint 恢复 

6 - 时间旅行：回退到任意历史状态，重放/分支 

7 - 多后端：Postgres / SQLite / File 

8 - 自动快照：每次 tool_call / llm_call 后自动保存 

9 

10用法: 

11 from agentos.checkpoint import create_checkpointer 

12 

13 cp = create_checkpointer("sqlite", db_path="checkpoints.db") 

14 await cp.put(checkpoint) # 保存状态 

15 state = await cp.get(id) # 恢复状态 

16""" 

17 

18from agentos.checkpoint.base import ( 

19 Checkpoint, 

20 CheckpointMetadata, 

21 CheckpointBackend, 

22) 

23from agentos.checkpoint.sqlite import SQLiteCheckpointer 

24from agentos.checkpoint.postgres import PostgresCheckpointer 

25from agentos.checkpoint.factory import create_checkpointer 

26 

27__all__ = [ 

28 "Checkpoint", 

29 "CheckpointMetadata", 

30 "CheckpointBackend", 

31 "SQLiteCheckpointer", 

32 "PostgresCheckpointer", 

33 "create_checkpointer", 

34]