reformatted with black

src/backend/langflow/interface/chains/base.py

@@ -10,6 +10,7 @@ from langflow.utils.util import build_template_from_class
 
 # Assuming necessary imports for Field, Template, and FrontendNode classes
 
+
 class ChainCreator(LangChainTypeCreator):
     type_name: str = "chains"
 

src/backend/langflow/template/frontend_node/vectorstores.py

@@ -3,6 +3,7 @@ from typing import Optional
 from langflow.template.field.base import TemplateField
 from langflow.template.frontend_node.base import FrontendNode
 
+
 class VectorStoreFrontendNode(FrontendNode):
     def add_extra_fields(self) -> None:
         if self.template.type_name == "Weaviate":