Legacy Documentation: Version 4.3.0
AssetDatabase.IsMainAsset
static function IsMainAsset(obj: Object): bool;
static bool IsMainAsset(Object obj);
static def IsMainAsset(obj as Object) as bool
static function IsMainAsset(instanceID: int): bool;
static bool IsMainAsset(int instanceID);
static def IsMainAsset(instanceID as int) as bool
Description

Is asset a main asset in the project window?

For example an imported model has a game object as its root and several Meshes and child game objects in expanded state. The root game object is the main asset in this case.