text: var alter = require('../lib/alter.js');
  var Chainable = require('../lib/classes/chainable');
  module.exports = new Chainable('bars', {
    args: [
      {
        name: 'inputSeries',
        types: ['seriesList']
      },
      {
        name: 'width',
        types: ['number', 'null'],
        help: 'Width of bars in pixels'
      }
    ],
    help: 'Show the seriesList as bars',
    fn: function barsFn(args) {
      return alter(args, function (eachSeries, width) {
        eachSeries.bars = eachSeries.bars || {};
        eachSeries.bars.show = width == null ? 1 : width;
        eachSeries.bars.lineWidth = width == null ? 6 : width;
        return eachSeries;
      });
    }
  });
  