class_docstr: A dictionary that lazily load its values when they are requested.
class_docstr_tok: ["A","dictionary","that","lazily","load","its","values","when","they","are","requested","."]
code: def items(self):
      return [(k, self[k]) for k in self._mapping.keys()]
  
imports: import importlib
  import re
  from collections import OrderedDict
  from typing import List, Union
  from fastNLP.transformers.torch.configuration_utils import PretrainedConfig
  from fastNLP.transformers.torch.file_utils import CONFIG_NAME
  from fastNLP.core.log import logger
label_desc: Use image node_id 5 for calling the _LazyConfigMapping obj's underlying member method code with example usage: obj.items() and returns: unknown