code: def url(self):
      return f"{self.ROOT}/{self.record}/files/{self.file_name}"
  
file_path: gluonts/src/gluonts/dataset/repository/_tsf_datasets.py
imports: from pathlib import Path
  from tempfile import TemporaryDirectory
  from typing import Dict, List, NamedTuple, Optional
  from urllib import request
  from zipfile import ZipFile
  from pandas.tseries.frequencies import to_offset
  from gluonts.dataset import DatasetWriter
  from gluonts.dataset.common import MetaData, TrainDatasets
  from gluonts.dataset.field_names import FieldName
  from gluonts.gluonts_tqdm import tqdm
  from ._tsf_reader import TSFReader, frequency_converter
  from ._util import metadata, request_retrieve_hook
label_desc: Use image node_id 1 for calling the Dataset obj's underlying member method code with example usage: obj.url() and returns: self, str, self, str, self