Update app.py

app.py

@@ -1,10 +1,15 @@
 import os
 import gradio as gr
-from langchain.chat_models import ChatOpenAI
+from langchain_google_genai import ChatGoogleGenerativeAI
 from langchain import LLMChain, PromptTemplate
 from langchain.memory import ConversationBufferMemory
 
-OPENAI_API_KEY=os.getenv('OPENAI_API_KEY')
+
+import getpass
+import os
+
+
+os.environ["GOOGLE_API_KEY"] = "AIzaSyBbruzn10nez-0a-_60TA9R9h6qumLD1Es"
 
 template = """You are a helpful assistant to answer all user queries.
 {chat_history}
@@ -18,7 +23,7 @@ prompt = PromptTemplate(
 memory = ConversationBufferMemory(memory_key="chat_history")
 
 llm_chain = LLMChain(
-    llm=ChatOpenAI(temperature='0.5', model_name="gpt-3.5-turbo"),
+    llm=ChatGoogleGenerativeAI(temperature='0.5', model_name="gemini-pro"),
     prompt=prompt,
     verbose=True,
     memory=memory,