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