stylelint-bundle-worker.js
function(type, token) {
    this.sets[type] = this.sets[type] || [];
    this.count++;
    this.stack.push(token);
    return this.sets[type].push(token);
  }
function(type, token) {
    this.sets[type] = this.sets[type] || [];
    this.count++;
    this.stack.push(token);
    return this.sets[type].push(token);
  }
Push a `token` onto the `type` stack.

@param {String} `type`
@return {Object} `token`
@api public