ScriptableRenderPipeline/MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Util/UvChannel.cs

using System;

namespace UnityEditor.ShaderGraph {
    public enum UVChannel
    {
        uv0 = 0,
        uv1 = 1,
        uv2 = 2,
        uv3 = 3,
    }
}