code: def get_result_file_template(self):
          
          res_file_folder = os.path.join(self.devkit_path, 'results', 'VOC' + self.year, 'Main')
          comp_id = self.config['comp_id']
          filename = comp_id + '_det_' + self.image_set + '_{:s}.txt'
          path = os.path.join(res_file_folder, filename)
          return path
docs: this is a template
          VOCdevkit/results/VOC2007/Main/<comp_id>_det_test_aeroplane.txt
  
          Returns:
          ----------
              a string template