postEvent method Null safety
protected">@protected
All events dispatched by a WidgetInspectorService use this method instead of calling developer.postEvent directly so that tests for WidgetInspectorService can track which events were dispatched by overriding this method.
Implementation
@protected
void postEvent(String eventKind, Map<Object, Object?> eventData) {
developer.postEvent(eventKind, eventData);
}