code: def time_enqueued(self):
          
          value = self._properties.get('enqueueTimestamp')
          if value is not None:
              return _datetime_from_microseconds(int(value))
docs: Retrieve the timestamp at which the task was enqueued.
  
          See: https://cloud.google.com/appengine/docs/python/taskqueue/rest/tasks
  
          :rtype: :class:`datetime.datetime` or ``NoneType``
          :returns: Datetime object parsed from microsecond timestamp, or
                    ``None`` if the property is not set locally.