netcoreapp3.1 
namespace System.Diagnostics.CodeAnalysis
{
    [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter | AttributeTargets.ReturnValue, Inherited = false)]
    public sealed class MaybeNullAttribute : Attribute
}
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Assembly System.Runtime , Version=4.2.2.0, PublicKeyToken=b03f5f7f11d50a3a
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.NET 5.06.07.08.09.0
.NET Core 3.03.1
.NET Standard 2.1
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05/02/2024
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