kvstore impls for redis / sqlite moved

llama_stack/providers/utils/kvstore/api.py

@@ -0,0 +1,28 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from datetime import datetime
+from typing import Any, List, Optional, Protocol
+
+from pydantic import BaseModel
+
+
+class KVStoreValue(BaseModel):
+    key: str
+    value: Any
+    expiration: Optional[datetime] = None
+
+
+class KVStore(Protocol):
+    async def set(
+        self, key: str, value: Any, expiration: Optional[datetime] = None
+    ) -> None: ...
+
+    async def get(self, key: str) -> Optional[KVStoreValue]: ...
+
+    async def delete(self, key: str) -> None: ...
+
+    async def range(self, start_key: str, end_key: str) -> List[KVStoreValue]: ...