docstr: Returns a tuple with the opening and closing times (``datetime.time``)
  for the given ``date`` (``datetime/date`` instance)
docstr_tok: ["Returns","a","tuple","with","the","opening","and","closing","times","(","``","datetime.time","``",")","for","the","given","``","date","``","(","``","datetime\/date","``","instance",")"]
code: def schedule(self, day):
      """
      Returns a tuple with the opening and closing times (``datetime.time``)
      for the given ``date`` (``datetime/date`` instance)
      """
      raise NotImplementedError
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  from datetime import datetime, timedelta, time
  from .metabase import MetaParams
  from backtrader.utils.py3 import string_types, with_metaclass
  from backtrader.utils import UTC
label_desc: Use image node_id 2 for calling the TradingCalendarBase obj's underlying member method code with example usage: obj.schedule(day) without return types