Fires an event that is defined in the Widget API.
The fireEvent() function fires a widget event, which can then be handled from outside the widget (by code in a parent widget or a site page).
When using the widget's API, the event is named on, for example, onAddedToCart.
The name of te event to be fired.
A data object that is passed to the event handler.
This method doesn’t return any custom errors, but may return standard errors. Learn more about standard Wix errors.