Update app.py

app.py

@@ -3,8 +3,23 @@ from langchain_openai import ChatOpenAI
 from langchain.chains import RetrievalQA
 from langchain.vectorstores import Chroma
 from langchain_community.embeddings import HuggingFaceEmbeddings
+
+import os
+import sys
+
+# get model name
+model = 'llama3.2'
+
+# start the server
+os.system('ollama serve &')
+# pull the model
+os.system(f'ollama pull {model}')
+# verify the contents
+os.system(f'ollama pull {model}')
+
 embeddings = HuggingFaceEmbeddings(model_name="sentence-transformers/all-MiniLM-L6-v2")
 
+
 llm = llm = ChatOpenAI(
     api_key="ollama",
     model='llama3.2',