fix linting

lightrag/kg/oracle_impl.py

@@ -739,57 +739,59 @@ class OracleGraphStorage(BaseGraphStorage):
 
     async def remove_nodes(self, nodes: list[str]) -> None:
         """Delete multiple nodes from the graph
-        
+
         Args:
             nodes: List of node IDs to be deleted
         """
         if not nodes:
             return
-            
+
         try:
             for node in nodes:
                 # For each node, first delete all its relationships
                 delete_relations_sql = SQL_TEMPLATES["delete_entity_relations"]
                 params_relations = {"workspace": self.db.workspace, "entity_name": node}
                 await self.db.execute(delete_relations_sql, params_relations)
-                
+
                 # Then delete the node itself
                 delete_node_sql = SQL_TEMPLATES["delete_entity"]
                 params_node = {"workspace": self.db.workspace, "entity_name": node}
                 await self.db.execute(delete_node_sql, params_node)
-                
-            logger.info(f"Successfully deleted {len(nodes)} nodes and their relationships")
+
+            logger.info(
+                f"Successfully deleted {len(nodes)} nodes and their relationships"
+            )
         except Exception as e:
             logger.error(f"Error during batch node deletion: {e}")
             raise
 
     async def remove_edges(self, edges: list[tuple[str, str]]) -> None:
         """Delete multiple edges from the graph
-        
+
         Args:
             edges: List of edges to be deleted, each edge is a (source, target) tuple
         """
         if not edges:
             return
-            
+
         try:
             for source, target in edges:
                 # Check if the edge exists before attempting to delete
                 if await self.has_edge(source, target):
                     # Delete the edge using a SQL query that matches both source and target
                     delete_edge_sql = """
-                        DELETE FROM LIGHTRAG_GRAPH_EDGES 
-                        WHERE workspace = :workspace 
-                        AND source_name = :source_name 
+                        DELETE FROM LIGHTRAG_GRAPH_EDGES
+                        WHERE workspace = :workspace
+                        AND source_name = :source_name
                         AND target_name = :target_name
                     """
                     params = {
                         "workspace": self.db.workspace,
                         "source_name": source,
-                        "target_name": target
+                        "target_name": target,
                     }
                     await self.db.execute(delete_edge_sql, params)
-                    
+
             logger.info(f"Successfully deleted {len(edges)} edges from the graph")
         except Exception as e:
             logger.error(f"Error during batch edge deletion: {e}")