code: def __lt__(self, o: Device) -> bool:
      if self.node_id < o.node_id:
          return True
      elif self.node_id > o.node_id:
          return False
      else:
          if isinstance(o, GPUDevice):
              return self.gpu_id < o.gpu_id
          else:
              return True
  
imports: from dataclasses import dataclass
  from abc import ABC, abstractmethod
label_desc: Use image node_id 3 for calling the GPUDevice obj's underlying member method code with example usage: obj.__lt__(o) and returns: True, False, unknown, True