OnDetachedEvent class
Fired when a tab is detached from a window, for example because it is being moved between windows.
class OnDetachedEvent {
 final int tabId;
 final Map detachInfo;
 OnDetachedEvent(this.tabId, this.detachInfo);
}
Constructors
new OnDetachedEvent(int tabId, Map detachInfo) #
Creates a new Object instance.
Object instances have no meaningful state, and are only useful
through their identity. An Object instance is equal to itself
only.
docs inherited from Object 
OnDetachedEvent(this.tabId, this.detachInfo);