Fixed NIM API Key bug.

SNOMED-CT_Assistant.py

@@ -128,7 +128,6 @@ def chat_input(prompt, med_text):
             messages=st.session_state.messages, 
             temperature=0.5)
         msg = entity_identification_response.choices[0].message.content
-        print("NIM output" + msg)
         entity_list = json.loads(msg)["identified_entity"]
         st.session_state.messages.append({"role": "assistant", "content": msg})
         st.chat_message("assistant").write(msg)
@@ -179,8 +178,8 @@ for msg in st.session_state.messages:
     st.chat_message(msg["role"]).write(msg["content"])
 
 if user_input := st.chat_input():
-    if not openai_api_key:
-        st.info("Please add your OpenAI API key to continue.")
+    if not nvidia_nim_key:
+        st.info("Please add your Nvidia NIM API key to continue.")
         st.stop()
     entity_identification_prompt = generate_entity_identification_prompt(user_input)
     chat_input(entity_identification_prompt, user_input)