Construct a not equal to (``!=``) filter.

        :param value: Filter value
        :return: :class:`filters.Field <filters.Field>` object
        :rtype: filters.Field

def ne(self, value):
        """Construct a not equal to (``!=``) filter.

        :param value: Filter value
        :return: :class:`filters.Field <filters.Field>` object
        :rtype: filters.Field
        """
        self.op = '!='
        self.negate_op = '='
        self.value = self._value(value)
        return self