ScriptableRenderPipeline/com.unity.render-pipelines.high-definition/HDRP/Debug/DecalsDebug.cs

using System;

namespace UnityEngine.Experimental.Rendering.HDPipeline
{
    [Serializable]
    public class DecalsDebugSettings
    {
        public bool m_DisplayAtlas = false;
        public UInt32 m_MipLevel = 0;
    }
}