How to use the yfinance.base.TickerBase function in yfinance

from __future__ import print_function

# import time as _time
import datetime as _datetime
import requests as _requests
import pandas as _pd
# import numpy as _np

# import json as _json
# import re as _re
from collections import namedtuple as _namedtuple

from .base import TickerBase


class Ticker(TickerBase):

    def __repr__(self):
        return 'yfinance.Ticker object <%s>' % self.ticker

    def _download_options(self, date=None, proxy=None):
        if date is None:
            url = "{}/v7/finance/options/{}".format(
                self._base_url, self.ticker)
        else:
            url = "{}/v7/finance/options/{}?date={}".format(
                self._base_url, self.ticker, date)

        # setup proxy in requests format
        if proxy is not None:
            if isinstance(proxy, dict) and "https" in proxy:
                proxy = proxy["https"]