Fixed bad merge of GenerationOptions in llmrails.py (code referred to options, not gen_options)

Author: tgasser-nv

nemoguardrails/rails/llm/llmrails.py

@@ -843,9 +843,8 @@ async def generate_async(
         if (
             messages
             and messages[-1]["role"] == "assistant"
-            and options
-            and hasattr(options, "rails")
-            and getattr(getattr(options, "rails"), "dialog", None) is False
+            and gen_options
+            and gen_options.rails.dialog is False
         ):
             # We already have the first message with a context update, so we use that
             messages[0]["content"]["bot_message"] = messages[-1]["content"]