text: Title: I want to implement a multi-task network for segmentation and keypoints .what do i need to do
  Body: ### Search before asking
  
  - [x] I have searched the Ultralytics YOLO [issues](https://github.com/ultralytics/ultralytics/issues) and [discussions](https://github.com/orgs/ultralytics/discussions) and found no similar questions.
  
  
  ### Question
  
  I want to implement a multi-task network for segmentation and keypoints .what do i need to do
  
  ### Additional
  
  _No response_