def update(opts)
      opts = opts.merge(:product_id => self.product_id)
      Twocheckout::API.request(:post, 'products/update_product', opts)
      response = Twocheckout::API.request(:get, 'products/detail_product', opts)
      Product.new(response['product'])
    end
def update(opts)
      opts = opts.merge(:product_id => self.product_id)
      Twocheckout::API.request(:post, 'products/update_product', opts)
      response = Twocheckout::API.request(:get, 'products/detail_product', opts)
      Product.new(response['product'])
    end
Updates product and returns a new Product object