docstr: Register the device parameter.
docstr_tok: ["Register","the","device","parameter","."]
code: def device(
      self,
  ):
      r"""Register the device parameter."""
      return self.plm.device
  
imports: from typing import *
  from utils import round_list, signature
  import paddle
label_desc: Use image node_id 4 for calling the ErniePromptforClassification obj's underlying member method code with example usage: obj.device() and returns: self