docs: def get_fields(model_class):
      """
      Pass in a mongo model class and extract all the attributes which
      are mongoengine fields
  
      Returns:
          list of strings of field attributes
      """
      return [
          attr for attr, value in model_class.__dict__.items()
          if issubclass(type(value), (mongo.base.BaseField, mongo.EmbeddedDocumentField))  # noqa
      ]