Update app.py

app.py

@@ -9,6 +9,13 @@ sm_endpoint_name = os.getenv("sm_endpoint_name")
 access_key = os.getenv("access_key")
 secret_key = os.getenv("secret_key")
 
+session = boto3.Session(
+    aws_access_key_id=access_key,
+    aws_secret_access_key=secret_key,
+    region_name=region
+)
+sess = sagemaker.Session(boto_session=session)
+
 # hyperparameters for llm
 parameters = {
     "do_sample": True,