Update question_answer_worker.py

Author: TrilokiDA

question_answer_worker.py

@@ -7,7 +7,7 @@
 
 def palm_llm():
     ##### Google LLM api key and connection #####
-    api_key = 'AIzaSyBOEXRoZeBsnwnKM8TmbdMHjTaEpHpeAbY'
+    api_key = 'YOUR_API_KEY'
     llm = GooglePalm(google_api_key=api_key, temperature=0.2)
     return llm
 
@@ -33,4 +33,4 @@ def huggingface_embedding(few_shots):
 def croma_vectorstore(to_vectorize, embeddings, few_shots):
     vectorstore = Chroma.from_texts(to_vectorize, embeddings, metadatas=few_shots)
     example_selector = SemanticSimilarityExampleSelector(vectorstore=vectorstore, k=2, )
-    return example_selector
+    return example_selector