🐛 fix(Metaphor.py): ignore type error for importing Metaphor from metaphor_python

🐛 fix(Metaphor.py): ignore type error for returning a list with mixed types
🐛 fix(Vectara.py): add condition to check if documents and embedding are not None before creating Vectara instance
🐛 fix(CustomComponent.py): change return type of get_function_entrypoint_return_type to List[str] to match the actual return value

src/backend/langflow/components/toolkits/Metaphor.py

@@ -1,7 +1,7 @@
 from typing import List, Union
 from langflow import CustomComponent
 
-from metaphor_python import Metaphor
+from metaphor_python import Metaphor  # type: ignore
 from langchain.tools import Tool
 from langchain.agents import tool
 from langchain.agents.agent_toolkits.base import BaseToolkit
@@ -48,4 +48,4 @@ class MetaphorToolkit(CustomComponent):
             """
             return client.find_similar(url, num_results=5)
 
-        return [search, get_contents, find_similar]
+        return [search, get_contents, find_similar]  # type: ignore

src/backend/langflow/components/vectorstores/Vectara.py

@@ -34,9 +34,9 @@ class VectaraComponent(CustomComponent):
         documents: Optional[Document] = None,
     ) -> Union[VectorStore, BaseRetriever]:
         # If documents, then we need to create a Vectara instance using .from_documents
-        if documents:
+        if documents is not None and embedding is not None:
             return Vectara.from_documents(
-                documents=documents,
+                documents=documents,  # type: ignore
                 vectara_customer_id=vectara_customer_id,
                 vectara_corpus_id=vectara_corpus_id,
                 vectara_api_key=vectara_api_key,

src/backend/langflow/interface/custom/custom_component.py

@@ -92,9 +92,9 @@ class CustomComponent(Component, extra=Extra.allow):
         return build_method["args"]
 
     @property
-    def get_function_entrypoint_return_type(self) -> str:
+    def get_function_entrypoint_return_type(self) -> List[str]:
         if not self.code:
-            return ""
+            return []
         tree = self.get_code_tree(self.code)
 
         component_classes = [
@@ -103,7 +103,7 @@ class CustomComponent(Component, extra=Extra.allow):
             if self.code_class_base_inheritance in cls["bases"]
         ]
         if not component_classes:
-            return ""
+            return []
 
         # Assume the first Component class is the one we're interested in
         component_class = component_classes[0]
@@ -114,7 +114,7 @@ class CustomComponent(Component, extra=Extra.allow):
         ]
 
         if not build_methods:
-            return ""
+            return []
 
         build_method = build_methods[0]
         return_type = build_method["return_type"]