Update project_model.py

project_model.py

@@ -145,6 +145,9 @@ def generate_visual_context(pil_image: Image.Image) -> str:
 # Main Multimodal Processing Function
 # -------------------------------
 
+# Create a global session object to persist across follow-ups
+session = VisualQAState()
+
 def process_inputs(
     session: VisualQAState,
     image: Image.Image = None,