Update chain_app.py

chain_app.py

@@ -1002,11 +1002,46 @@ async def main(message: cl.Message):
     		system="You are a helpful AI chatbot made by two iranian boys named Artin Daneshvar and Sadra Noadoust",
     		api_name="/model_chat"
         )
+        await cl.Message(
+            content=result[1][0][1]
+        ).send()
+        
+    elif chat_profile == 'Qwen2-7B':
+        client = Client("Qwen/Qwen2-7b-instruct-demo", hf_token=hf_token)
+        result = client.predict(
+    		query=message.content,
+    		system="You are a helpful AI chatbot made by two iranian boys named Artin Daneshvar and Sadra Noadoust",
+    		api_name="/model_chat"
+        )
         await cl.Message(
             content=result[1][0][1]
 
         ).send()
 
+    elif chat_profile == 'Qwen2-1.5B':
+        client = Client("Qwen/Qwen2-1.5b-instruct-demo", hf_token=hf_token)
+        result = client.predict(
+    		query=message.content,
+    		system="You are a helpful AI chatbot made by two iranian boys named Artin Daneshvar and Sadra Noadoust",
+    		api_name="/model_chat"
+        )
+        await cl.Message(
+            content=result[1][0][1]
+
+        ).send()
+
+    elif chat_profile == 'Qwen2-0.5B':
+        client = Client("Qwen/Qwen2-0.5B-Instruct", hf_token=hf_token)
+        result = client.predict(
+    		query=message.content,
+    		system="You are a helpful AI chatbot made by two iranian boys named Artin Daneshvar and Sadra Noadoust",
+    		api_name="/model_chat"
+        )
+        await cl.Message(
+            content=result[1][0][1]
+
+        ).send()
+        
     elif chat_profile == 'Llama-3.1-405B':        
         client = InferenceClient(
             "meta-llama/Meta-Llama-3.1-405B-Instruct",