code: def on_accelerator(self, tensor):
      device_str = str(tensor.device)
      if device_str.startswith("cuda:"):
          return True
      else:
          return False
  
imports: from deepspeed.accelerator.abstract_accelerator import DeepSpeedAccelerator
  import torch.cuda
label_desc: Use image node_id 50 for calling the CUDA_Accelerator obj's underlying member method code with example usage: obj.on_accelerator(tensor) and returns: True, False