Laurens-Packages/Packages/com.unity.shadergraph/Editor/Data/Nodes/Math/Advanced/AbsoluteNode.cs

using System.Reflection;

namespace UnityEditor.ShaderGraph
{
    [Title("Math", "Advanced", "Absolute")]
    class AbsoluteNode : CodeFunctionNode
    {
        public AbsoluteNode()
        {
            name = "Absolute";
            synonyms = new string[] { "positive" };
        }

        protected override MethodInfo GetFunctionToConvert()
        {
            return GetType().GetMethod("Unity_Absolute", BindingFlags.Static | BindingFlags.NonPublic);
        }

        static string Unity_Absolute(
            [Slot(0, Binding.None)] DynamicDimensionVector In,
            [Slot(1, Binding.None)] out DynamicDimensionVector Out)
        {
            return
@"
{
    Out = abs(In);
}
";
        }
    }
}