Upload app.py

app.py

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+from langchain_google_genai import ChatGoogleGenerativeAI
+from dotenv import load_dotenv
+import os
+
+load_dotenv()
+google_api_key = os.getenv("GEMINI_API_KEY")
+model ="gemini-2.5-flash-lite"
+
+def run_hello_langchain():
+    """
+    Instantiates a ChatGoogleGenerativeAI model.
+    Invokes it with a simple prompt.
+    Prints the model's response.
+    """
+    llm = ChatGoogleGenerativeAI(model=model, google_api_key=google_api_key)
+    response = llm.invoke("explain RLHF in 2 lines!")
+    print(response.content)
+
+run_hello_langchain()
+