add missing return statement

chain.py

@@ -45,6 +45,7 @@ class ChainBuilder:
         def load_and_cache_embedding_model(model_name):
             embeddings = HuggingFaceEmbeddings(model_name=model_name, cache_folder="./langchain_cache/") # this cache isnt working because were in the Docker container
         # update this to read from a presaved cache of bge-large
+            return embeddings # return directly?
         
         return load_and_cache_embedding_model(model_name)
 
@@ -66,7 +67,7 @@ class ChainBuilder:
                 columns=["name", "description"],
             ).as_retriever(search_kwargs=search_kwargs)
 
-            return vector_search_as_retriever
+            return vector_search_as_retriever # return directly?
         
         return get_and_cache_retriever(endpoint, index_name, embeddings, search_kwargs)
 
@@ -104,7 +105,7 @@ class ChainBuilder:
                 ("user", "{question}"),
             ]
         )
-        return prompt
+        return prompt # return directly?
 
     # Format the converastion history to fit into the prompt template above.
     # **** TODO after only a few statements this will likely overflow the context window
@@ -145,7 +146,7 @@ class ChainBuilder:
                 endpoint=endpoint,
                 extra_params=extra_params,
             )
-            return model
+            return model # return directly?
         
         return get_and_cache_model(endpoint, extra_params)