docs: def _from_dict(cls, _dict):
          """Initialize a Classification object from a json dictionary."""
          args = {}
          if 'classifier_id' in _dict:
              args['classifier_id'] = _dict.get('classifier_id')
          if 'url' in _dict:
              args['url'] = _dict.get('url')
          if 'text' in _dict:
              args['text'] = _dict.get('text')
          if 'top_class' in _dict:
              args['top_class'] = _dict.get('top_class')
          if 'classes' in _dict:
              args['classes'] = [
                  ClassifiedClass._from_dict(x) for x in (_dict.get('classes'))
              ]
          return cls(**args)