Solved Layer for raycasting to animals?

So i have a pretty old version decompiled on my desktop, so i decided to redecompile. Well rust/layers.cs isn't there anymore atleast not that i see is it moved or just gone completely. If so what is the layer to raycast to animals, because what i have isn't working and i think it use to work about a year ago.

EDIT: I ended up doing this maybe there is a better way, but this worked for me.

Code:

                    RaycastHit[] hits;
                hits = Physics.RaycastAll(player.eyes.position, player.eyes.HeadForward(), 1.0F);
               
                for (int i = 0; i < hits.Length; i++)
                {
           
                    RaycastHit hit = hits[i];
                    var horse=hit.GetEntity();
                    var horsetest=horse.GetComponent<BaseNpc>();
                    if(horse==null)return;
                    var horsename=horse.ShortPrefabName.ToString();
                    if(horsename!="horse")return;
                    player.gameObject.GetComponent<Player>().horseentity=horsetest;
                    player.gameObject.GetComponent<Player>().onhorse=true;
                    return;
                }

 

Thanks in advance.

Hook.

 

Why layer "AI" for animals to not work with Vis.Entities?
When this entity.gameObject.layer = "AI".