code: def ne(self, value):
          
          self.op = '!='
          self.negate_op = '='
          self.value = self._value(value)
          return self
docs: Construct a not equal to (``!=``) filter.
  
          :param value: Filter value
          :return: :class:`filters.Field <filters.Field>` object
          :rtype: filters.Field