🐛 fix(langflow): add type ignore to node variable in LangChainTypeCreator

🐛 fix(langflow): remove unused imports in base.py files
The variable node in LangChainTypeCreator was causing a type error, so a type ignore was added to fix the issue. Additionally, unused imports were removed from both base.py files.

src/backend/langflow/interface/base.py

@@ -42,7 +42,7 @@ class LangChainTypeCreator(BaseModel, ABC):
             # so we should update the result dict
             node = self.frontend_node(name)
             if node is not None:
-                node = node.to_dict()
+                node = node.to_dict()  # type: ignore
                 result[self.type_name].update(node)
 
         return result

src/backend/langflow/template/base.py

@@ -1,6 +1,6 @@
-from abc import ABC
 import re
-from typing import Any, Callable, Dict, List, Optional, Union
+from abc import ABC
+from typing import Any, Callable, List, Optional, Union
 
 from pydantic import BaseModel