code: def has_no_date(at):
      """Returns True if the given object is an ``adatetime`` where ``year``,
      ``month``, and ``day`` are all None.
      """
  
      if isinstance(at, datetime):
          return False
      return at.year is None and at.month is None and at.day is None
  
imports: import calendar
  import copy
  from datetime import date, datetime, timedelta
  from whoosh.compat import iteritems
label_desc: Use image node_id 8 for calling a global function with example usage: has_no_date(at) and returns: unknown, False