Update app.py

app.py

@@ -33,7 +33,7 @@ os.environ["LANGCHAIN_PROJECT"] = "Lithuanian_Law_RAG_QA"
 
 
 
-def create_retriever_from_chroma(vectorstore_path="./docs/chroma/", search_type='mmr', k=7, chunk_size=250, chunk_overlap=20):
+def create_retriever_from_chroma(vectorstore_path="./docs/chroma/", search_type='mmr', k=7, chunk_size=250, chunk_overlap=20,lambda_mult= 0.7):
     
     model_name = "Alibaba-NLP/gte-base-en-v1.5"
     model_kwargs = {'device': 'cpu',
@@ -73,7 +73,7 @@ def create_retriever_from_chroma(vectorstore_path="./docs/chroma/", search_type=
         )
         st.write("VectorStore is created")
     
-    retriever=vectorstore.as_retriever(search_type = search_type, search_kwargs={"k": k, 'lambda_mult': 0.7})
+    retriever=vectorstore.as_retriever(search_type = search_type, search_kwargs={"k": k, "lambda_mult": lambda_mult})