private bool IsValidHierarchyInstanceID(int instanceID)
{
bool flag = SceneHierarchyWindow.IsSceneHeaderInHierarchyWindow(EditorSceneManager.GetSceneByHandle(instanceID));
bool flag2 = InternalEditorUtility.GetClassIDWithoutLoadingObject(instanceID) == this.kGameObjectClassID;
return(flag || flag2);
}