<Snackbar
  message="Event added to your calendar"
  action="undo"
  autoHideDuration={this.state.autoHideDuration}
  onActionTouchTap={this._handleAction}/>
//Somewhere in our code
_handleAction() {
  //We can add more code to this function, but for now we\ll just include an alert.
  alert("We removed the event from your calendar.");
};
