code: def set_product(self, product_name, product_version):
          
  
          self.product_name = product_name
          self.product_version = product_version
docs: Set the product name and version that is transmitted as part of our identification
          
          According to 'FinTS Financial Transaction Services, Schnittstellenspezifikation, Formals',
          version 3.0, section C.3.1.3, you should fill this with useful information about the
          end-user product, *NOT* the FinTS library.