code: def map_files(self, local_files):
          
          ret_dict = {}
          for local_file in local_files:
              ret_dict[local_file] = self.get_scratch_path(local_file)
          return ret_dict
docs: Build a dictionary mapping local paths to scratch paths.
  
          Parameters
          ----------
  
          local_files : list
              List of filenames to be mapped to scratch area
  
          Returns dict
              Mapping local_file : fullpath of scratch file