code: def assertTimeZoneNotEqual(self, dt, tz, msg=None):
          '''Fail if ``dt``'s ``tzinfo`` attribute equals ``tz`` as
          determined by the '!=' operator.
  
          Parameters
          ----------
          dt : datetime
          tz : timezone
          msg : str
              If not provided, the :mod:`marbles.mixins` or
              :mod:`unittest` standard message will be used.
  
          Raises
          ------
          TypeError
              If ``dt`` is not a datetime object.
          TypeError
              If ``tz`` is not a timezone object.
          '''
          if not isinstance(dt, datetime):
              raise TypeError('First argument is not a datetime object')
          if not isinstance(tz, timezone):
              raise TypeError('Second argument is not a timezone object')
  
          self.assertNotEqual(dt.tzinfo, tz, msg=msgf assertTimeZoneNotEqual(self, dt, tz, msg=None):
          '''Fail if ``dt``'s ``tzinfo`` attribute equals ``tz`` as
          determined by the '!=' operator.
  
          Parameters
          ----------
          dt : datetime
          tz : timezone
          msg : str
              If not provided, the :mod:`marbles.mixins` or
              :mod:`unittest` standard message will be used.
  
          Raises
          ------
          TypeError
              If ``dt`` is not a datetime object.
          TypeError
              If ``tz`` is not a timezone object.
          '''
          if not isinstance(dt, datetime):
              raise TypeError('First argument is not a datetime object')
          if not isinstance(tz, timezone):
              raise TypeError('Second argument is not a timezone object')
  
          self.assertNotEqual(dt.tzinfo, tz, msg=msg)
docs: Fail if ``dt``'s ``tzinfo`` attribute equals ``tz`` as
          determined by the '!=' operator.
  
          Parameters
          ----------
          dt : datetime
          tz : timezone
          msg : str
              If not provided, the :mod:`marbles.mixins` or
              :mod:`unittest` standard message will be used.
  
          Raises
          ------
          TypeError
              If ``dt`` is not a datetime object.
          TypeError
              If ``tz`` is not a timezone object.