UnityGame/Library/PackageCache/com.unity.test-framework/UnityEditor.TestRunner/Api/ICallbacksHolder.cs

using System;

namespace UnityEditor.TestTools.TestRunner.Api
{
    internal interface ICallbacksHolder
    {
        void Add(ICallbacks callback, int priority);
        void Remove(ICallbacks callback);
        ICallbacks[] GetAll();
        void Clear();
    }
}