  artoo.saveCsv = function(data, params) {
    params = filenamePolymorphism(params);

    data = (typeof data !== 'string') ?
      artoo.writers.csv(data, params) :
      data;

    artoo.save(
      data,
      helpers.extend(params, {mime: 'csv', filename: 'data.csv'})
    );
  };