update memory mgmt?

app.py

@@ -4,6 +4,10 @@ st.set_page_config(layout="wide")
 openai_key = st.secrets["openai_key"]
 cohere_key = st.secrets['cohere_key']
 
+# clear session state to free up ram
+for key in st.session_state.keys():
+    del st.session_state[key]
+
 import numpy as np
 from abc import ABC, abstractmethod
 from typing import List, Dict, Any, Tuple