bracks to parens

app.py

@@ -31,14 +31,14 @@ def initialize_session_state():
         st.session_state.history = []
     if "conversation" not in st.session_state:
         embeddings = download_hugging_face_embeddings()
-        pc = Pinecone(api_key=os.environ["PINECONE_API_KEY"])
+        pc = Pinecone(api_key=os.getenv("PINECONE_API_KEY"))
         index = pc.Index("il-legal")
         docsearch = PineconeVectorStore.from_existing_index(index_name="il-legal", embedding=embeddings)
         
         repo_id = "mistralai/Mixtral-8x7B-Instruct-v0.1"
         llm = HuggingFaceEndpoint(
             repo_id=repo_id,
-            model_kwargs={"huggingface_api_token":os.environ["HUGGINGFACEHUB_API_TOKEN"]},
+            model_kwargs={"huggingface_api_token":os.getenv("HUGGINGFACEHUB_API_TOKEN")},
             temperature=0.5,
             top_k=10,
         )