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ML-Learner / server /src /checkpointer /__init__.py

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import aiosqlite
from langgraph.checkpoint.sqlite.aio import AsyncSqliteSaver
from langgraph.checkpoint.memory import InMemorySaver


_checkpointer = None

async def get_checkpointer():
    global _checkpointer
    if _checkpointer is None:
        conn = await aiosqlite.connect("db.sqlite")
        _checkpointer = AsyncSqliteSaver(conn)

    # _checkpointer=InMemorySaver()
    return _checkpointer



	import aiosqlite
	from langgraph.checkpoint.sqlite.aio import AsyncSqliteSaver
	from langgraph.checkpoint.memory import InMemorySaver


	_checkpointer = None

	async def get_checkpointer():
	global _checkpointer
	if _checkpointer is None:
	conn = await aiosqlite.connect("db.sqlite")
	_checkpointer = AsyncSqliteSaver(conn)

	# _checkpointer=InMemorySaver()
	return _checkpointer