replace query_vector args in search method of mongodb vector_stores (#3379)

mem0/vector_stores/mongodb.py

@@ -111,15 +111,13 @@ class MongoDB(VectorStoreBase):
         except PyMongoError as e:
             logger.error(f"Error inserting data: {e}")
 
-    def search(
-        self, query: str, query_vector: List[float], limit=5, filters: Optional[Dict] = None
-    ) -> List[OutputData]:
+    def search(self, query: str, vectors: List[float], limit=5, filters: Optional[Dict] = None) -> List[OutputData]:
         """
         Search for similar vectors using the vector search index.
 
         Args:
             query (str): Query string
-            query_vector (List[float]): Query vector.
+            vectors (List[float]): Query vector.
             limit (int, optional): Number of results to return. Defaults to 5.
             filters (Dict, optional): Filters to apply to the search.
 
@@ -141,7 +139,7 @@ class MongoDB(VectorStoreBase):
                         "index": self.index_name,
                         "limit": limit,
                         "numCandidates": limit,
-                        "queryVector": query_vector,
+                        "queryVector": vectors,
                         "path": "embedding",
                     }
                 },