afExpression :: Lens' APIdimensionFilter (Maybe Text)
afExpression
  = lens _afExpression (\ s a -> s{_afExpression = a})
afExpression :: Lens' APIdimensionFilter (Maybe Text)
afExpression
  = lens _afExpression (\ s a -> s{_afExpression = a})
afExpression
  = lens _afExpression (\ s a -> s{_afExpression = a})