code: def on_accelerator(self, tensor):
      device_str = str(tensor.device)
      if device_str.startswith("xpu:"):
          return True
      else:
          return False
  
imports: import torch
  from deepspeed.accelerator.abstract_accelerator import DeepSpeedAccelerator
  import intel_extension_for_pytorch
  import oneccl_bindings_for_pytorch
label_desc: Use image node_id 58 for calling the XPU_Accelerator obj's underlying member method code with example usage: obj.on_accelerator(tensor) and returns: True, False