code: def create_free_shipping_promotion(cls, free_shipping_promotion, **kwargs):
          
          kwargs['_return_http_data_only'] = True
          if kwargs.get('async'):
              return cls._create_free_shipping_promotion_with_http_info(free_shipping_promotion, **kwargs)
          else:
              (data) = cls._create_free_shipping_promotion_with_http_info(free_shipping_promotion, **kwargs)
              return data
docs: Create FreeShippingPromotion
  
          Create a new FreeShippingPromotion
          This method makes a synchronous HTTP request by default. To make an
          asynchronous HTTP request, please pass async=True
          >>> thread = api.create_free_shipping_promotion(free_shipping_promotion, async=True)
          >>> result = thread.get()
  
          :param async bool
          :param FreeShippingPromotion free_shipping_promotion: Attributes of freeShippingPromotion to create (required)
          :return: FreeShippingPromotion
                   If the method is called asynchronously,
                   returns the request thread.