code: def _get_prop_infos(self, prop):
          
          info_dict = self.get_info_field(prop)
          main_infos = info_dict.get('export', {}).copy()
          infos = main_infos.get(self.config_key, {})
          main_infos['label'] = self._get_title(prop, main_infos, info_dict)
          main_infos['name'] = prop.key
          main_infos['key'] = prop.key
          main_infos.update(infos)
          main_infos['__col__'] = prop
          return main_infos
docs: Return the infos configured for this specific prop, merging the
          different configuration level