fixed type error

vision_agent/agent/vision_agent.py

@@ -247,7 +247,7 @@ def __call__(
  input = [{"role": "user", "content": input}]
  if media is not None:
  input[0]["media"] = [media]
- results, _ = self.chat_and_artifacts(input, artifacts)
+ results, _ = self.chat_with_artifacts(input, artifacts)
  return results[-1]["content"] # type: ignore
 
  def chat(