unloadEventHandlers method
Unloads this component event handlers. Call super to check whether this component has been attached. If it hasn't, it will throw ComponentNotRenderedException.
Because this is a StringComponent, this method is not called as this component never gets rendered independently. The parent needs to call this typically during preUnrender.
Implementation
@override
@mustCallSuper
void unloadEventHandlers() {
assertElementAttached();
super.unloadEventHandlers();
}