code: def data_file(file_fmt, info=None, **kwargs):
      
      if isinstance(info, dict):
          kwargs['hash_key'] = hashlib.sha256(json.dumps(info).encode('utf-8')).hexdigest()
          kwargs.update(info)
  
      return utils.fstr(fmt=file_fmt, **kwargs)
docs: Data file name for given infomation
  
      Args:
          file_fmt: file format in terms of f-strings
          info: dict, to be hashed and then pass to f-string using 'hash_key'
                these info will also be passed to f-strings
          **kwargs: arguments for f-strings
  
      Returns:
          str: data file name