diff --git a/lightrag/base.py b/lightrag/base.py
index b1fe50a2..e70dddd1 100644
--- a/lightrag/base.py
+++ b/lightrag/base.py
@@ -96,7 +96,7 @@ class StorageNameSpace:
 class BaseVectorStorage(StorageNameSpace):
     embedding_func: EmbeddingFunc
     meta_fields: set[str] = field(default_factory=set)
-
+    
     async def query(self, query: str, top_k: int) -> list[dict[str, Any]]:
         raise NotImplementedError
 
diff --git a/lightrag/lightrag.py b/lightrag/lightrag.py
index 593b5734..8a65a46c 100644
--- a/lightrag/lightrag.py
+++ b/lightrag/lightrag.py
@@ -982,7 +982,10 @@ class LightRAG:
                 await self._insert_done()
 
     def query(
-        self, query: str, param: QueryParam = QueryParam(), prompt: str | None = None
+        self, 
+        query: str, 
+        param: QueryParam = QueryParam(), 
+        prompt: str | None = None
     ) -> str | Iterator[str]:
         """
         Perform a sync query.
@@ -996,7 +999,8 @@ class LightRAG:
             str: The result of the query execution.
         """
         loop = always_get_an_event_loop()
-        return loop.run_until_complete(self.aquery(query, param, prompt))
+        
+        return loop.run_until_complete(self.aquery(query, param, prompt)) # type: ignore
 
     async def aquery(
         self,
@@ -1455,7 +1459,7 @@ class LightRAG:
 
     async def get_entity_info(
         self, entity_name: str, include_vector_data: bool = False
-    ):
+    ) -> dict[str, str | None | dict[str, str]]:
         """Get detailed information of an entity
 
         Args:
@@ -1475,7 +1479,7 @@ class LightRAG:
         node_data = await self.chunk_entity_relation_graph.get_node(entity_name)
         source_id = node_data.get("source_id") if node_data else None
 
-        result = {
+        result: dict[str, str | None | dict[str, str]] = {
             "entity_name": entity_name,
             "source_id": source_id,
             "graph_data": node_data,
@@ -1531,7 +1535,7 @@ class LightRAG:
         )
         source_id = edge_data.get("source_id") if edge_data else None
 
-        result = {
+        result: dict[str, str | None | dict[str, str]] = {
             "src_entity": src_entity,
             "tgt_entity": tgt_entity,
             "source_id": source_id,
diff --git a/lightrag/operate.py b/lightrag/operate.py
index a961cfd9..d6cc9f3c 100644
--- a/lightrag/operate.py
+++ b/lightrag/operate.py
@@ -2,7 +2,7 @@ import asyncio
 import json
 import re
 from tqdm.asyncio import tqdm as tqdm_async
-from typing import Any, Union
+from typing import Any, AsyncIterator, Union
 from collections import Counter, defaultdict
 from .utils import (
     logger,
@@ -780,7 +780,7 @@ async def mix_kg_vector_query(
     query_param: QueryParam,
     global_config: dict[str, str],
     hashing_kv: BaseKVStorage | None = None,
-) -> str:
+) -> str | AsyncIterator[str]:
     """
     Hybrid retrieval implementation combining knowledge graph and vector search.
 
@@ -1505,7 +1505,7 @@ async def naive_query(
     query_param: QueryParam,
     global_config: dict[str, str],
     hashing_kv: BaseKVStorage | None = None,
-):
+) -> str | AsyncIterator[str]:
     # Handle cache
     use_model_func = global_config["llm_model_func"]
     args_hash = compute_args_hash(query_param.mode, query, cache_type="query")