code: function() {
      // Cleans all cache files
      if (fs.existsSync(this.dir)) {
        var files = fs.readdirSync(this.dir);
  
        files.forEach(function(file) {
          fs.unlinkSync(path.join(this.dir, file));
        }.bind(this));
      }
    }
docs: /*
  Synchronous clean