docs: def _from_dict(cls, _dict):
          """Initialize a ClassifierList object from a json dictionary."""
          args = {}
          if 'classifiers' in _dict:
              args['classifiers'] = [
                  Classifier._from_dict(x) for x in (_dict.get('classifiers'))
              ]
          else:
              raise ValueError(
                  'Required property \'classifiers\' not present in ClassifierList JSON'
              )
          return cls(**args)