<PackageReference Include="Azure.Core" Version="1.65.0" />

System.Diagnostics.CodeAnalysis.NotNullIfNotNullAttribute

namespace System.Diagnostics.CodeAnalysis { internal sealed class NotNullIfNotNullAttribute : Attribute { public string ParameterName { get; } public NotNullIfNotNullAttribute(string parameterName); } } namespace System.Diagnostics.CodeAnalysis { }