Update app.py

app.py

@@ -6,7 +6,7 @@ from openai import AzureOpenAI
 
 from langchain_openai import AzureOpenAIEmbeddings
 
-from langchain_community.vectorstores import Chroma
+from langchain_chroma import Chroma
 from langchain.retrievers import ContextualCompressionRetriever
 from langchain.retrievers.document_compressors import CrossEncoderReranker
 from langchain_community.cross_encoders import HuggingFaceCrossEncoder
@@ -38,7 +38,7 @@ vectorstore_persisted = Chroma(
 
 retriever = vectorstore_persisted.as_retriever(
     search_type='similarity',
-    search_kwargs={'k': 20}
+    search_kwargs={'k': 10}
 )
 
 cross_encoder_model = HuggingFaceCrossEncoder(model_name="cross-encoder/ms-marco-MiniLM-L-6-v2")
@@ -160,4 +160,4 @@ demo = gr.Interface(
 )
 
 demo.queue()
-demo.launch()
+demo.launch(auth=("demouser", os.getenv('PASSWD')))