LocalFileStore integration

pip install -qU langchain-classic

from pathlib import Path

from langchain_classic.storage import LocalFileStore

root_path = Path.cwd() / "data"  # can also be a path set by a string

kv_store = LocalFileStore(root_path)

kv_store.mset(
    [
        ["key1", b"value1"],
        ["key2", b"value2"],
    ]
)

kv_store.mget(
    [
        "key1",
        "key2",
    ]
)

[b'value1', b'value2']

!ls {root_path}

key1 key2

kv_store.mdelete(
    [
        "key1",
        "key2",
    ]
)

kv_store.mget(
    [
        "key1",
        "key2",
    ]
)

[None, None]