class_docstr: ernie model 
class_docstr_tok: ["ernie","model"]
docstr: eval 
docstr_tok: ["eval"]
code: def eval(self):
      """eval"""
      if paddle.in_dynamic_mode():
          super(ErnieModel, self).eval()
      self.training = False
      for l in self.sublayers():
          l.training = False
      return self
  
imports: import logging
  import re
  import time
  import paddle
  from paddle import nn
  from paddle.nn import functional
label_desc: Use image node_id 3 for calling the ErnieModel obj's underlying member method code with example usage: obj.eval() and returns: self