﻿#if !(NETSTANDARD2_1 || NETCOREAPP3_1)

namespace System.Diagnostics.CodeAnalysis
{
    [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter | AttributeTargets.ReturnValue, Inherited = false)]
    internal sealed class NotNullAttribute : Attribute
    {
    }
}

#endif