text: const Benchmark = require('benchmark');
  const Suc = require('./lib/core');
  
  let suite = new Benchmark.Suite;
  
  let sucStr =
    'str >hello, world!\n' +
    '[num] 99932\n' +
    '[num_list]\n1\n67\n5\n'
    '[bool] false\n'
    '[array]\nabc\ncba\nttt'
  ;
  let suc = new Suc;
  let parse = function () {
    suc.parse(sucStr);
  };
  
  const obj = {
    str: 'hello, world!',
    num: 99932,
    num_list: [1, 67, 5],
    bool: false,
    array: ['abc', 'cba', 'ttt'],
  };
  let stringify = function () {
    suc.stringify(obj);
  };
  
  suite
  .add('parse', function () {
    parse();
  })
  .add('stringify', function () {
    stringify();
  })
  // add listeners
  .on('cycle', function(event) {
    console.log(String(event.target));
  })
  .on('complete', function() {
    console.log('Fastest is ' + this.filter('fastest').map('name'));
  })
  // run async
  .run({ 'async': true });
  