code: def is_null(value):
      
      if type(value) in (tuple, list):
          for v in value:
              if v is None:
                  return True
          return False
      else:
          return value is None
docs: Check if the scalar value or tuple/list value is NULL.
  
      :param value: Value to check.
      :type value: a scalar or tuple or list
  
      :return: Returns ``True`` if and only if the value is NULL (scalar value is None
          or _any_ tuple/list elements are None).
      :rtype: bool