docs: function (cwd, filename, options, customizeEngine) {
      var helpers = customizeEngine.engine.helpers
  
      var code = helpers.example(path.join(cwd, filename), {
        hash: {
          snippet: true
        }
      })
      var result = helpers.exec(`node ${filename}`, {
        hash: {
          cwd: cwd,
          lang: 'raw'
        }
      })
  
      return Q.all([code,result]).spread(function(code, result) {
        console.log(result)
        var output = result.split('\u0001')
        return code.replace(/console\.log\-output/g, function() {
          return output.shift().trim();
        })
      })
  
    }