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"""Implementations of key-value stores and storage helpers.
Module provides implementations of various key-value stores that conform
to a simple key-value interface.
The primary goal of these storages is to support implementation of caching.
"""
from typing import TYPE_CHECKING, Any
from langchain_core.stores import (
InMemoryByteStore,
InMemoryStore,
InvalidKeyException,
)
from langchain._api import create_importer
from langchain.storage._lc_store import create_kv_docstore, create_lc_store
from langchain.storage.encoder_backed import EncoderBackedStore
from langchain.storage.file_system import LocalFileStore
if TYPE_CHECKING:
from langchain_community.storage import (
RedisStore,
UpstashRedisByteStore,
UpstashRedisStore,
)
# Create a way to dynamically look up deprecated imports.
# Used to consolidate logic for raising deprecation warnings and
# handling optional imports.
DEPRECATED_LOOKUP = {
"RedisStore": "langchain_community.storage",
"UpstashRedisByteStore": "langchain_community.storage",
"UpstashRedisStore": "langchain_community.storage",
}
_import_attribute = create_importer(__package__, deprecated_lookups=DEPRECATED_LOOKUP)
def __getattr__(name: str) -> Any:
"""Look up attributes dynamically."""
return _import_attribute(name)
__all__ = [
"create_kv_docstore",
"create_lc_store",
"EncoderBackedStore",
"InMemoryByteStore",
"InMemoryStore",
"InvalidKeyException",
"LocalFileStore",
"RedisStore",
"UpstashRedisByteStore",
"UpstashRedisStore",
]
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