<PackageReference Include="System.Data.SqlClient" Version="4.9.0" />

Microsoft.SqlServer.Server.SqlMethodAttribute

namespace Microsoft.SqlServer.Server { public sealed class SqlMethodAttribute : SqlFunctionAttribute { public bool InvokeIfReceiverIsNull { get; set; } public bool IsMutator { get; set; } public bool OnNullCall { get; set; } public SqlMethodAttribute(); } }