class_docstr: ernie model 
class_docstr_tok: ["ernie","model"]
docstr: return checkpoints for recomputing
docstr_tok: ["return","checkpoints","for","recomputing"]
code: def get_checkpoints(self):
      """return checkpoints for recomputing"""
      # recompute checkpoints
      return self._checkpoints
  
imports: import logging
  import re
  import time
  import paddle
  from paddle import nn
  from paddle.nn import functional
label_desc: Use image node_id 2 for calling the ErnieModel obj's underlying member method code with example usage: obj.get_checkpoints() and returns: self