Add LangCache API integration for semantic caching

pyproject.toml

@@ -48,6 +48,7 @@ mistralai = { version = ">=1.0.0", optional = true }
 voyageai = { version = ">=0.2.2", optional = true }
 ranx = { version = "^0.3.0", python=">=3.10", optional = true }
 boto3 = {version = "1.36.0", optional = true, extras = ["bedrock"]}
+langcache = {path = "vendor/langcache-0.0.4-py3-none-any.whl"}
 
 [tool.poetry.extras]
 openai = ["openai"]

redisvl/extensions/cache/embeddings/embeddings.py

@@ -7,7 +7,8 @@
 
 from redisvl.extensions.cache.base import BaseCache
 from redisvl.extensions.cache.embeddings.schema import CacheEntry
-from redisvl.redis.utils import convert_bytes, hashify
+from redisvl.redis.utils import convert_bytes
+from redisvl.utils.utils import hashify
 
 
 class EmbeddingsCache(BaseCache):

redisvl/extensions/cache/llm/__init__.py

@@ -4,11 +4,18 @@
 This module provides LLM cache implementations for RedisVL.
 """
 
+from redisvl.extensions.cache.llm.langcache_api import LangCache
 from redisvl.extensions.cache.llm.schema import (
     CacheEntry,
     CacheHit,
     SemanticCacheIndexSchema,
 )
 from redisvl.extensions.cache.llm.semantic import SemanticCache
 
-__all__ = ["SemanticCache", "CacheEntry", "CacheHit", "SemanticCacheIndexSchema"]
+__all__ = [
+    "SemanticCache",
+    "CacheEntry",
+    "CacheHit",
+    "SemanticCacheIndexSchema",
+    "LangCache",
+]