when using sequelize , why count(*) is sent always code example

Example 1: populating db through sequilize adding a book

Model.findAll({
  attributes: ['foo', 'bar']
});

Example 2: count using sequelize.fn

exports.getMinPrice = () => Item.findAll({    attributes: [[sequelize.fn('min', sequelize.col('price')), 'minPrice']],  });