code: def create_class(self):
          
          if self.target_language in ['java', 'go']:
              n_indents = 1 if self.target_language == 'java' else 0
              class_head_temp = self.temp('separated.{}.class'.format(
                  self.prefix), n_indents=n_indents, skipping=True)
              self.class_head = class_head_temp.format(**self.__dict__)
  
          return self.temp('separated.class').format(**self.__dict__)
docs: Build the estimator class.
  
          Returns
          -------
          :return : string
              The built class as string.