code: function show() {
    var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    var level = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'success';
  
    return _extends({
      type: _const.RNS_SHOW_NOTIFICATION
    }, opts, {
      uid: opts.uid || Date.now(),
      level: level
    });
  }
docs: Example opts { title: 'Hey, it\'s good to see you!', message: 'Now you can see how easy it is to use notifications in React!', position: 'tr', autoDismiss: 0, action: { label: 'Awesome!', callback: function() { console.log('Clicked'); } } }