SMAPI/StardewModdingAPI/Events/FarmAnimal.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace StardewModdingAPI.Events
{
    public class FarmAnimal
    {
        public void eatGrass_OnEnter()
        {

        }
    }
}