class_docstr: HolidayCalendar implementation.
  
  Unlike BoundedHolidayCalendar, doesn't require specifying calendar bounds, and
  supports weekends and holiday supplied as `Tensor`s. However, it is
  (potentially significantly) slower than the dates.HolidayCalendar
  implementation.
class_docstr_tok: ["HolidayCalendar","implementation",".","Unlike","BoundedHolidayCalendar",",","does","n't","require","specifying","calendar","bounds",",","and","supports","weekends","and","holiday","supplied","as","`","Tensor","`","s",".","However",",","it","is","(","potentially","significantly",")","slower","than","the","dates.HolidayCalendar","implementation","."]
docstr: Returns a tensor of bools for whether given dates are business days.
docstr_tok: ["Returns","a","tensor","of","bools","for","whether","given","dates","are","business","days","."]
code: def is_business_day(self, date_tensor):
      """Returns a tensor of bools for whether given dates are business days."""
      ordinals = dt.convert_to_date_tensor(date_tensor).ordinal()
      return self._to_biz_space(ordinals)[1]
  
file_path: tf-quant-finance/tf_quant_finance/datetime/unbounded_holiday_calendar.py
imports: import tensorflow.compat.v2
  from tf_quant_finance.datetime import constants
  from tf_quant_finance.datetime import date_tensor
  from tf_quant_finance.datetime import date_utils
  from tf_quant_finance.datetime import holiday_calendar
  from tf_quant_finance.datetime import holiday_utils
  from tf_quant_finance.datetime import periods
label_desc: Use image node_id 2 for calling the UnboundedHolidayCalendar obj's underlying member method code with example usage: obj.is_business_day(date_tensor) and returns: self